Question

A=12h(a+b)

Answer 1

A=12h(a+b) 
Solve for h.

All these answers are incorrect
A. h=2Aa+b
B.h=a+b2A
C.h=A2(a+b)
D.h=2(a+b)A

The answer is 
h = A / 12(a+b)
$h = \frac{A}{12(a+b)}$