The area of one triangle is one-quarter area of the rectangle.
We need to find the area of the triangle.
How to find the area of the triangle?
Since we have a rectangle, and there are 4 triangles in the rectangle. Also, each triangle is the same size.
Let
- A = area of reactangle and
- A' = area of one triangle.
So, area of rectangle, A = area of 4 triangles
= 4 Ă— area of one triangle, A'
= 4A'
A = 4A'
Making A' subject of the formula, we have
A' = A/4
So, the area of one triangle is one-quarter area of the rectangle.
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