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A square piece of confetti has sides that are $7\,\text{millimeters}$ long. What is the piece of confetti's area? $\newline$ $\_\_\_\_\_$ square millimeters

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Area and perimeter: word problems

Full solution

Q. A square piece of confetti has sides that are

7\,\text{millimeters}

long. What is the piece of confetti's area?

\newline

\_\_\_\_\_

square millimeters

Recognize formula for area: Step $1$ : Recognize the formula for the area of a square. $\newline$ The formula for the area of a square is $A = s^2$ , where $s$ is the length of one side.
Substitute side length: Step $2$ : Substitute the side length into the formula. $\newline$ $s = 7$ mm $\newline$ $A = 7^2$ $\newline$ $A = 49$
Conclude with area: Step $3$ : Conclude with the area of the square. $\newline$ The area of the square piece of confetti is $49$ square millimeters.

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