Question

Given the literal equation for the area formula of a trapezoid: equation is in the photo attached. Only do the first one. PLEASE SHOW WORK :)

Answer 1

2A/h - b1 = b2

Explanation:

A = 1/2 h ( b1+b2)

We want to solve for b2

Multiply each side by 2

2A = 2* 1/2 h ( b1+b2)

2A = h ( b1+b2)

Divide each side by h

2A / h = h/h ( b1+b2)

2A / h = b1+b2

Subtract b1 from each side

2A/h - b1 = b1 + b2 -b1

2A/h - b1 = b2