Triangle plane surface 2m base and 3 height

In summary, the conversation is about finding the value of sin and the question of where the number "1" comes from in the solution. The person asking the question is referencing images and equations in an attempt to clarify their understanding. The expert summarizer is unable to provide a clear answer due to the unclear question, but provides a general explanation of triangle geometry and the concept of a centroid.
  • #1
manal950
177
0
Hello ..

This is a question with answer , From where " 1 " in the solution ?

http://store1.up-00.com/Mar12/yd170715.jpg
 
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  • #2
see here

http://store1.up-00.com/Mar12/uK579693.jpg
and
http://store1.up-00.com/Mar12/D4a79693.jpg
 
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  • #3
where are you ?
 
  • #4
similar question , but here first find angle

http://store1.up-00.com/Mar12/61270702.jpg
 
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  • #5
Where are you ??
that question which I want only about sin

sin = o/h

but my Q now
h= 1 why
is because 3/3
or 2 / 2
or what please help me
 
  • #6
Your question is unclear to me.
 
  • #7
I mean
sin30 = y/1
So Xbar = 1.5 + y
So Xbar = 1.5 + 1Xsin30

Now my question from where we got (one)
Is by divide 3/3 as (h/3 ) = 1 or what ?.

please I want your help ?
 
  • #8
The base of the triangle is the part closest to the surface. If triangle height is 3, the centroid of a triangle is 1/3 the distance from the base to the apex opposite the base. 1/3 of 3 is 1 and 1 is the hypotenuse.
 
  • #9
thanks sooooooooooo much .. where are you before ... ^)^ ?
 
  • #10
manal950 said:
thanks sooooooooooo much .. where are you before ... ^)^ ?

Mowing the front lawn.
 

Related to Triangle plane surface 2m base and 3 height

1. What is the area of the triangle plane surface with a base of 2 meters and a height of 3 meters?

The area of a triangle is calculated by multiplying the base by the height and dividing the result by 2. In this case, the area would be (2 x 3) / 2 = 3 square meters.

2. How can I use the measurements of the triangle plane surface to calculate its perimeter?

The perimeter of a triangle can be calculated by adding together the lengths of all three sides. In this case, we would need to know the length of the third side in order to find the perimeter.

3. Is the triangle plane surface with a base of 2 meters and a height of 3 meters a right triangle?

No, a right triangle has one angle that measures 90 degrees. Without knowing the measurements of all three angles, we cannot determine if the triangle is a right triangle.

4. Can I use the Pythagorean theorem to find the length of the third side of this triangle?

Yes, the Pythagorean theorem can be used to find the length of the third side in a right triangle. However, since we do not know if this triangle is a right triangle, we cannot use this method to find the length of the third side.

5. How does the shape of the triangle plane surface affect its properties?

The shape of the triangle plane surface affects its properties in terms of its area, perimeter, and angles. Different shapes have different formulas for finding these measurements and may have special properties, such as being a right triangle or having equal sides and angles.

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