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Pre-University Math
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Geometry and Trigonometry
Points, Lines and Angles; Plane Shapes and Solids; Constructions; Congruences and Similarities; Analytic or Coordinate Geometry; Basic Vector Geometry
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Trigonometry
Trigonometry to Memorize and Trigonometry to Derive
Ackbach
Jan 28, 2012
Replies
1
Views
12K
Jun 21, 2013
Ackbach
S
Proving isosceles using centroid and medians
slwarrior64
Nov 4, 2020
Replies
1
Views
203
Thursday at 3:41 PM
mrtwhs
R
Square feet calculations assistance
riffwraith
Dec 11, 2020
Replies
9
Views
676
Thursday at 12:08 PM
Greg
[SOLVED]
act.ge.5 third angle of triangle
karush
Dec 12, 2020
Replies
1
Views
104
Dec 13, 2020
skeeter
D
Trigonometry
sin[1/2 sin−1x]=
DUC_123
Dec 8, 2020
Replies
2
Views
157
Dec 9, 2020
topsquark
Orthogonal projection
rannasquaer
Dec 7, 2020
Replies
1
Views
85
Dec 7, 2020
Opalg
[SOLVED]
gre,ge.2 similiar triangles
karush
Jan 31, 2020
Replies
3
Views
790
Nov 20, 2020
karush
[SOLVED]
act.59 sin theta >= 1
karush
Nov 19, 2020
Replies
0
Views
85
Nov 19, 2020
karush
S
Angle bisector
slwarrior64
Nov 14, 2020
Replies
2
Views
178
Nov 15, 2020
slwarrior64
S
V
Trigonometry
Triangles
Voila
Nov 8, 2020
Replies
0
Views
172
Nov 8, 2020
Voila
V
S
Proving a centroid
slwarrior64
Nov 4, 2020
Replies
1
Views
111
Nov 6, 2020
slwarrior64
S
S
Perpendicular diagonals
slwarrior64
Oct 29, 2020
Replies
10
Views
338
Oct 31, 2020
slwarrior64
S
S
Circumradius
slwarrior64
Oct 29, 2020
Replies
2
Views
133
Oct 30, 2020
slwarrior64
S
S
In similarity chapter
slwarrior64
Oct 22, 2020
Replies
1
Views
159
Oct 24, 2020
Country Boy
C
Trigonometric Functions
xyz_1965
Jul 27, 2020
Replies
4
Views
435
Oct 13, 2020
topsquark
[SOLVED]
-gre.ge.11 x,y of fourth corner of diagonal
karush
Oct 4, 2020
Replies
3
Views
268
Oct 11, 2020
karush
How do I find the Euclidean Coordinate Functions of a parametrized curve?
banananaz
Sep 28, 2020
Replies
1
Views
173
Sep 28, 2020
Country Boy
C
Find area of shaded region
anemone
Sep 26, 2020
Replies
2
Views
156
Sep 26, 2020
anemone
E
Vector question
Ecdownes
Sep 26, 2020
Replies
1
Views
103
Sep 26, 2020
skeeter
S
Extrapolating sofa dimensions
sofahelp
Sep 3, 2020
Replies
2
Views
214
Sep 4, 2020
sofahelp
S
J
Calculate volume of non parallel wedge
jasonmcbride
Sep 2, 2020
Replies
1
Views
178
Sep 3, 2020
Klaas van Aarsen
Find the area of triangle
anemone
Aug 15, 2020
Replies
1
Views
285
Aug 16, 2020
kaliprasad
[ASK]Solution Set of a Trigonometry Inequation
Monoxdifly
Aug 13, 2020
Replies
4
Views
173
Aug 14, 2020
Monoxdifly
J
Trigonometry
Right Triangle Problem
Jacob123
Aug 13, 2020
Replies
1
Views
131
Aug 13, 2020
skeeter
Distance Across Lake
xyz_1965
Jul 29, 2020
Replies
1
Views
176
Aug 12, 2020
Country Boy
C
Distance Between Two Ships
xyz_1965
Jul 29, 2020
Replies
1
Views
163
Aug 12, 2020
Country Boy
C
Trigonometry
How to find a length of line in quadrilateral?
asmmanikanda
Aug 8, 2020
Replies
10
Views
329
Aug 9, 2020
asmmanikanda
Find x and y
xyz_1965
Jul 27, 2020
Replies
1
Views
218
Aug 4, 2020
Monoxdifly
Law of Tangent Ignored
xyz_1965
Jul 29, 2020
Replies
14
Views
289
Aug 4, 2020
jonah
Find Area of Gable
xyz_1965
Jul 31, 2020
Replies
4
Views
236
Jul 31, 2020
xyz_1965
C
Need help with Trig!! Thanks
charki126
Jul 30, 2020
Replies
1
Views
127
Jul 30, 2020
skeeter
Find Area of Triangle
xyz_1965
Jul 29, 2020
Replies
2
Views
140
Jul 29, 2020
xyz_1965
Area of Shaded Segment
xyz_1965
Jul 29, 2020
Replies
0
Views
138
Jul 29, 2020
xyz_1965
Isosceles Triangle ABC
xyz_1965
Jul 29, 2020
Replies
0
Views
108
Jul 29, 2020
xyz_1965
Find AC & BC
xyz_1965
Jul 28, 2020
Replies
2
Views
218
Jul 29, 2020
xyz_1965
Height of Washington Monument
xyz_1965
Jul 28, 2020
Replies
2
Views
141
Jul 29, 2020
xyz_1965
Inverse of Trig Functions
xyz_1965
Jul 27, 2020
Replies
16
Views
300
Jul 29, 2020
xyz_1965
Kite Distance Above the Ground
xyz_1965
Jul 27, 2020
Replies
18
Views
247
Jul 28, 2020
xyz_1965
Find Angle Theta
xyz_1965
Jul 27, 2020
Replies
4
Views
140
Jul 28, 2020
xyz_1965
Angle Formed By Ladder
xyz_1965
Jul 27, 2020
Replies
10
Views
197
Jul 28, 2020
xyz_1965
cot (0)
xyz_1965
Jul 27, 2020
Replies
9
Views
213
Jul 27, 2020
xyz_1965
Points A & B Out At Sea
xyz_1965
Jul 26, 2020
Replies
8
Views
213
Jul 27, 2020
xyz_1965
cot (60°)
xyz_1965
Jul 27, 2020
Replies
2
Views
140
Jul 27, 2020
xyz_1965
A Tree Application
xyz_1965
Jul 26, 2020
Replies
4
Views
183
Jul 27, 2020
xyz_1965
Find Legs of Right Triangle
xyz_1965
Jul 26, 2020
Replies
2
Views
138
Jul 26, 2020
xyz_1965
Building A and B
xyz_1965
Jul 26, 2020
Replies
2
Views
396
Jul 26, 2020
xyz_1965
B
I have no answers for these questions.. please help me!
boujeemath
Jul 5, 2020
Replies
3
Views
494
Jul 7, 2020
Country Boy
C
W
How should you draw this sketch?
WJMeyer
Jul 2, 2020
Replies
1
Views
226
Jul 2, 2020
skeeter
C
What does the following means?
Cbarker1
Jun 22, 2020
Replies
2
Views
357
Jun 29, 2020
Country Boy
C
Find the area of the shaded region
anemone
Jun 15, 2020
Replies
2
Views
315
Jun 17, 2020
anemone
H
Volume and surface area of "One World Trade Center"
Hyydrxzen
Jun 7, 2020
Replies
5
Views
359
Jun 9, 2020
Jameson
Find the diameter of one circle
anemone
Jun 6, 2020
Replies
3
Views
262
Jun 6, 2020
anemone
S
Couple of hard trig questions...
Sabrina102
May 30, 2020
Replies
1
Views
298
May 31, 2020
MarkFL
M
Addition of two sinusoids
Amathproblem22
May 21, 2020
Replies
3
Views
403
May 22, 2020
MarkFL
M
J
Line in second quadrant
Joe_1234
May 16, 2020
Replies
3
Views
335
May 20, 2020
Joe_1234
J
J
Trapezoid
Joe_1234
May 16, 2020
Replies
5
Views
303
May 20, 2020
MarkFL
M
O
Relationship between inner and outer radius of a two concentric circles
otlconcepts
May 15, 2020
Replies
2
Views
232
May 15, 2020
MarkFL
M
C
Bearings-Finding the angle of B as well as the finding the bearing from point A to Point C.
Cbarker1
May 15, 2020
Replies
3
Views
301
May 15, 2020
skeeter
P
Find the points of intersection of a line and a circle
penguin_alexa
May 8, 2020
Replies
2
Views
413
May 8, 2020
kaliprasad
Trigonometry
Acute angle of right triangles
mathmari
Apr 24, 2020
Replies
4
Views
441
May 6, 2020
mathmari
C
Trigonometry
Using laws of sines and cosines to solve for a triangle
Charlotte
Apr 22, 2020
Replies
2
Views
284
Apr 23, 2020
MarkFL
M
A
Trigonometry
Find the volume of the hexagonal-shaped plastic box
angubk6
Apr 18, 2020
Replies
4
Views
376
Apr 19, 2020
Prove It
P
A
Find the intersection point for x = -5 + 8t, y = 1 + 10t, z = 9 + 8t ; -2x + 8y + 8z = 10
aa1604962
Mar 23, 2020
Replies
1
Views
717
Mar 23, 2020
Prove It
P
L
Trigonometry
Solve trig equation cos(2x+20)=-cos(x-11)
laprec
Mar 5, 2020
Replies
5
Views
1K
Mar 16, 2020
laprec
L
M
Math Cumulative Review: Find the equation of a Line
Mathlete
Feb 25, 2020
Replies
2
Views
981
Feb 28, 2020
HallsofIvy
H
Find the scale factor of triangle ABC to triangle DEF
masters
Feb 14, 2020
Replies
5
Views
926
Feb 14, 2020
masters
[SOLVED]
-gre.al.1 GRE Exam Integers Product of two integers is -48 but their sum is a positive number
karush
Feb 11, 2020
Replies
2
Views
526
Feb 12, 2020
karush
[ASK] Geometry and Series
Monoxdifly
Feb 9, 2020
Replies
2
Views
459
Feb 10, 2020
HallsofIvy
H
[ASK] Area of a Triangle
Monoxdifly
Feb 10, 2020
Replies
3
Views
365
Feb 10, 2020
Klaas van Aarsen
K
Finding 2D Polygon Coordinates from a point
Krotus
Jan 27, 2020
Replies
2
Views
446
Jan 27, 2020
Krotus
K
T
The smallest circle that two parts of a semi-circle can fit into?
TrevorE
Jan 10, 2020
Replies
1
Views
440
Jan 26, 2020
LCKurtz
Maximum area of rectangle which circumscribes the given quadrilateral.
Dhamnekar Winod
Jan 16, 2020
Replies
21
Views
2K
Jan 20, 2020
Klaas van Aarsen
J
Trigonometry
Amplitude, Period, frequency and phase angle
jenney
Jan 17, 2020
Replies
1
Views
897
Jan 18, 2020
skeeter
[ASK] Equation of a Circle in the First Quadrant
Monoxdifly
Jan 8, 2020
Replies
4
Views
621
Jan 9, 2020
Monoxdifly
T
Find the missing coordinates
ThatSirOof
Jan 9, 2020
Replies
1
Views
376
Jan 9, 2020
skeeter
[ASK] A Circle Which Touches the X-Axis at 1 Point
Monoxdifly
Jan 8, 2020
Replies
2
Views
401
Jan 8, 2020
Monoxdifly
Trigonometry
[ASK] Proving Trigonometry 2sinα+2sinβ+2sinγ=4sinαsinβsinγ
Monoxdifly
Dec 1, 2019
Replies
4
Views
1K
Dec 28, 2019
Greg
T
Need help finding Diagonals of a Rhombus
thatbluegsx90
Dec 23, 2019
Replies
2
Views
608
Dec 23, 2019
Opalg
N
How many marbles are in a jar?
Nick C
Dec 19, 2019
Replies
1
Views
472
Dec 19, 2019
Nick C
N
Trigonometry
[ASK} Prove (cos2x+cos2y)/(sin2x−sin2y)=1/tan(x−y)
Monoxdifly
Nov 29, 2019
Replies
2
Views
1K
Dec 1, 2019
Monoxdifly
G
Surface of Angular Land
ghostfirefox
Nov 21, 2019
Replies
6
Views
832
Nov 25, 2019
ghostfirefox
G
G
Calculate the length of the fourth side edge.
ghostfirefox
Nov 21, 2019
Replies
3
Views
612
Nov 23, 2019
skeeter
[ASK] About Triangle where A as the right angle and BD is the bisector of angle B
Monoxdifly
Nov 21, 2019
Replies
2
Views
569
Nov 22, 2019
Monoxdifly
G
Points in a square, surface
ghostfirefox
Nov 21, 2019
Replies
1
Views
350
Nov 21, 2019
skeeter
T
Golden section and yin-yang symbol proportions
tongtu
Nov 17, 2019
Replies
2
Views
496
Nov 17, 2019
tongtu
T
G
Analytic geometry proof with triangle.
ghostfirefox
Nov 13, 2019
Replies
3
Views
693
Nov 16, 2019
ghostfirefox
G
[SOLVED]
-gre.ge.3 Circles Find the shaded area as a fraction
karush
Nov 9, 2019
Replies
8
Views
895
Nov 11, 2019
karush
N
height/diameter relationship of 19 (H8/D8=19)
nelg
Oct 29, 2019
Replies
2
Views
623
Oct 29, 2019
nelg
N
E
problem solving calculating area
einie101
Oct 23, 2019
Replies
7
Views
776
Oct 24, 2019
Monoxdifly
A
Check if two points are symmetrics/asymmetric
Andsello
Jul 26, 2019
Replies
2
Views
738
Oct 21, 2019
LCKurtz
G
Find slant height of a cone
gazparkin
Sep 24, 2019
Replies
2
Views
1K
Sep 30, 2019
HallsofIvy
H
[ASK] Equation of a Circle
Monoxdifly
Sep 18, 2019
Replies
4
Views
901
Sep 19, 2019
Monoxdifly
P
Geostationary Orbit
Pasha
Sep 14, 2019
Replies
3
Views
622
Sep 14, 2019
HallsofIvy
H
S
Trigonometry
solving trig equation cos(x)=sin(x) + 1/√3
sp3
Aug 30, 2019
Replies
3
Views
2K
Sep 13, 2019
kaliprasad
B
Find the angle of the parable tangent derived from the theoretical arc traced by a foot
Barkiernan
Aug 30, 2019
Replies
1
Views
788
Aug 30, 2019
MarkFL
M
[SOLVED]
236 GRE exam Three circles with centers on the same line segment PQ
karush
Aug 26, 2019
Replies
2
Views
683
Aug 27, 2019
karush
B
Trigonometry
Trigonometry: Right-angled triangle
Brian Bart
Aug 18, 2019
Replies
1
Views
951
Aug 18, 2019
skeeter
[ASK] Find the volume of Pyramid in a Cube
Monoxdifly
Aug 11, 2019
Replies
6
Views
1K
Aug 14, 2019
Monoxdifly
L
Year 10 Maths Find the length and width that will maximize the area of rectangle
liang123993
Aug 12, 2019
Replies
2
Views
591
Aug 14, 2019
Greg
Z
Trigonometry
Largest Quadrilateral inscribed in Scalene Triangle
Zane
Aug 10, 2019
Replies
0
Views
470
Aug 10, 2019
Zane
Z
S
Trigonometry
Real world trigonometry problem making furniture
shane
Aug 4, 2019
Replies
1
Views
622
Aug 4, 2019
skeeter
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Pre-University Math