Question

How would you solve this problem.

Answer 1

We can find h by calculating the area S of the parallelogram in two ways. We can write: $S=18\cdot10$. On the other hand, $S=12\cdot h$. Then:

$18\cdot10=12\cdot h\\\\ 12h=180\\\\h=\dfrac{180}{12}\\\\\boxed{h=15}$