Q. 93.5( 4 Votes )
Prove that area of a triangle = X base X altitude.
We know that when a parallelogram and a triangle lie on same base and between same parallel lines then, area of the triangle is half the area of the parallelogram.
Consider the figure,
Area(ΔABF) = 1/2 Area(||gm ABCD) (From above statement) –1
Area(||gm ABCD) = Base× Height –2
Sub –2 in –1
Area(ΔABF) = 1/2 × Base× Height
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