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