what is the width of rectangle when the perimiter is 72cm. and the length of it is 21cm.?

what is the width of the rectangle if it is 72 centimeters?
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1 Answer

well, the equation for the perimeter or a rectangle is length + width

so if the perimeter is 72, the length is 21, and you're trying to find the width, just subtract the length from the perimeter

72 - 21 = 51cm
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