We understand that the area of a rectangle is b × h , where b is the base and h is the height of the rectangle. Using the formula because that the area the a rectangle, we can discover the area the a triangle.

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A diagonal of a rectangle off the rectangle right into two congruent triangles. The area of every triangle is one-half the area the the rectangle.

So, the area A that a triangle is offered by the formula A = 1 2 b h whereby b is the base and also h is the height of the triangle.


Example:

discover the area the the triangle.

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The area A of a triangle is given by the formula A = 1 2 b h whereby b is the base and also h is the elevation of the triangle.

substitute 14 because that b and also 10 because that h in the formula.

A = 1 2 ( 14 ) ( 10 )

Simplify.

A = 1 2 ( 140 )           = 70

The area that the triangle is 70 square meters.


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