Question

The formula area of a trapezoid is A=1/2 h(b_1+b_2) solve for b_1


Please help ASAP

Answer 1

Answer: b1 =
`(2A)/(h) -b2`

Explanation:

Algebra my friend...Algebra

So:

A = 0.5h(b1+b2)

A/(0.5h) =b1+b2

.: A/(0.5h) - b2 = b1

In other words:

b1 =
`(A)/(0.5h) -b2`

The 0.5 in the denominator can be rearranged to get the final answer:

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