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grade 3 · MG-021

Find rectangle perimeter

Add every outside side length without confusing perimeter with area.

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Try with a hintFresh problem · seed 1444906908

A rectangle is 7 units long and 4 units wide. What is its perimeter?

Give me one hint

Trace only the outside boundary, not the inside.

Your answer

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Math Lab is a working name for Ready Rung's separate math-learning product. Guided success and independent evidence are reported separately.