Question

area of rectangles: word problems
each side of a square piece of confetti is 9 millimeters long. what is the piece of confettis area?
_______ square millimeters

Explanation:

Step1: Recall square area formula

Area of a square: $A = s^2$, where $s$ = side length

Step2: Substitute side length value

Substitute $s = 9$ mm: $A = 9^2$

Step3: Calculate the area

$A = 9 \times 9 = 81$

Answer:

81 square millimeters