Question

find the perimeter of the square. include the unit.
image of a square with 20 cm labeled below it
input box

Explanation:

Step1: Recall the formula for the perimeter of a square

The perimeter \( P \) of a square is given by the formula \( P = 4 \times s \), where \( s \) is the length of one side of the square.

Step2: Identify the side length of the square

From the diagram, the side length \( s \) of the square is 20 cm.

Step3: Calculate the perimeter

Substitute \( s = 20 \) cm into the formula: \( P = 4 \times 20 \) cm.
\( 4 \times 20 = 80 \), so the perimeter \( P = 80 \) cm.

Answer:

80 cm