Question

the formula for the area of a trapezoid is a=1/2(b1+b2)h solve for b1. the area of ABCD is 98cm2. figd the value of b2

Answer 1

Solution/:

`a = (1)/(2) h(b1 + b2)`

take h 4½ to the left

`(2a)/(h) = b1 + b2`

take b2 to the left

`b1 = (2a)/(h) - b2`

`b2 = (2a)/(h) - b2`