Question

find the perimeter of the figure below. notice that one side length is not given. assume that all intersecting sides meet at right angles. be sure to include the correct unit in your answer.

Explanation:

Step1: Find missing vertical side

$13 - 5 = 8\ \text{cm}$

Step2: Sum all horizontal sides

$16 + 7 + 9 = 32\ \text{cm}$

Step3: Sum all vertical sides

$13 + 8 + 5 = 26\ \text{cm}$

Step4: Total perimeter

$32 + 26 = 58\ \text{cm}$

Answer:

58 cm