Question

The length & breadth of a rectangle are 23 cm & 11 cm respectively. Find he area of the triangles formed by joining one of its diagonals.

Answer 1

Let the rectangle be ABCD... now AB is 23cm and AD is 11cm. Now lets take triangle ABD formed by joining diagonal BD. Here AB is the base and AD us hight. Formula of area of triangle is = 1/2(base)(height)
Area of ΔABD = 1/2(23)(11)
126.5