Question

The formula for the area of a trapezoid is A = one-half (b Subscript 1 Baseline b Subscript 2 Baseline) times h When this equation is solved for b Subscript 1, one equation is b Subscript 1 Baseline= StartFraction 2 A Over h EndFraction minus b Subscript 2. Which of the following is an equivalent equation to find b Subscript 1?
b Subscript 1 Baseline= StartFraction 2 A minus b Subscript 2 Baseline h Over h EndFraction
b Subscript 1 Baseline = 2 A minus b Subscript 2 Baseline h
b Subscript 1 Baseline= StartFraction h Over 2 A minus b Subscript 2 Baseline h EndFraction
b Subscript 1 Baseline = h (2 A minus b Subscript 2 Baseline h)

Answer 1

Area = hx (b_1 +b_2)/2


where
b1, b2 are the lengths of each base
h is the altitude (height)