Question

what is the missing length? area = 77 cm² w = \boxed{} centimeters

Explanation:

Step1: Recall parallelogram area formula

The area of a parallelogram is $A = b \times h$, where $b$ is the base, and $h$ is the height perpendicular to the base.

Step2: Rearrange formula to solve for $u$

We know $A = 77 \text{ cm}^2$ and $h = 7 \text{ cm}$. Rearrange to isolate $u$ (the base):
$u = \frac{A}{h}$

Step3: Substitute values and calculate

$u = \frac{77}{7}$

Answer:

11 centimeters