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The area of a rectangle is 42 square millimeters. The length is 7 millimeters. What is the perimeter of the rectangle?

2 Answers

2 votes

Answer:

Explanation:

Begin with the fact that the area of a rectangle is A = L * W. We know that the area is 42 and the length is 7, therefore, we can sub those values into the area formula to solve for the width.

42 = 7 * W so

w = 6 mm.

The perimeter formula is P = 2L + 2W, and now we know L and W. So

P = 2(7) + 2(6)

P = 14 + 12

P = 26

User Wukerplank
by
8.2k points
1 vote

Answer:

P=26

Explanation:

User Blearn
by
8.3k points

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