Question

Solve A=12bh for b when A=126 and h=18

Answer 1

b = 14

Explanation:

Substitute the given values for A and h into the formula

126 =
`(1)/(2)` × b × 18

126 = 9b ( divide both sides by 9 )

b = 14

Answer 2

b=14

Explanation:

A=1/2bh

We know A =126 and h = 18

126 = 1/2 b*18

126 = 9b

Divide each side by 9

126/9 = 9b/9

14 =b