Question

Find the value for x

Answer 1

14.
$A = \frac{1}{2} \cdot 12 \cdot x$
$\frac{1}{2} \cdot 12 \cdot x = 108$
$6x = 108; x = 18$

15.
$A = b \cdot h = 16x$
$96 = 16x; x = 6$