Mathematics
nquintdaniels
25

Mrs. Martin wants to place a ribbon around the outer edge of a rectangular mirror. The area of the mirror is 324 square inches. The width is of the mirror is 12 inches. How many inches of ribbon does Mrs. Martin need?

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(1) Answers
NganBerns585

The inches of ribbon that Mrs. Martin needs will be equal to the perimeter of the rectangular mirror. We know that the area of a rectangle equals the length times the width. Area = length * width 324 square inches = length * 12 inches length = 27 inches The perimeter of a rectangle is two times the length plus two times the width. Perimeter = length + length + width + width Perimeter = 27 + 27 + 12 + 12  Perimeter = 54 + 24  Perimeter = 78 inches Therefore, Mrs. Martin needs 78 inches of ribbon.

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