a rectangle has an area of 42 square inches which has a greater perimeter the rectangle with the dimensions 21 times 2 or the dimensions 6 times 7

Question

Mathematics

Patience Ellis

10 February, 21:13

a rectangle has an area of 42 square inches which has a greater perimeter the rectangle with the dimensions 21 times 2 or the dimensions 6 times 7

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Answers (2)

Know the Answer?

Patricia · Answer 1

21times 2 because it takes more work

Guadalupe · Answer 2

A = 42in²

P = 2l + 2w so

(21 x 2) + (2 x 2)

42 + 4 = 46

46 = 21 by 2

Now let's do 6 and 7

(6 x 2) + (7 x 2)

12 + 14 = 26

46 > 26

so 21 by 2 has greater P (perimeter)