Question

what is the missing length? a 39 mm area = 1248 mm² a = millimeters

Explanation:

Step1: Recall area formula for parallelogram

The area formula for a parallelogram is $A = base\times height$. Here, the base is 39 mm and the area $A = 1248$ $mm^{2}$, and the height is $a$.

Step2: Solve for height $a$

We can rewrite the formula as $a=\frac{A}{base}$. Substituting $A = 1248$ $mm^{2}$ and base = 39 mm, we get $a=\frac{1248}{39}$.
$a = 32$ mm.

Answer:

32