are a triangle has area equal to that of a square of side 80cm if the breadth of a triangle is 20 cm find its length
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Area of square = side x side = 80x80
=6400 cm square
Area of triangle = Area of square
so;
Area of triangle = 1/2 x h x b
6400 cm square = 1/2 x h x 20
6400 cm square= 10 x h
6400 ÷10 =h
640= h
so, length = 640cm
=6400 cm square
Area of triangle = Area of square
so;
Area of triangle = 1/2 x h x b
6400 cm square = 1/2 x h x 20
6400 cm square= 10 x h
6400 ÷10 =h
640= h
so, length = 640cm
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