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20 August, 20:06

The length of a triangle with area 54 m² is 9 cm. What is the perimeter of the rectangle, in centimeters?

A. 6

B. 12

C. 15

D. 25

E. 30

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Answers (1)
  1. 20 August, 22:17
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    To get the area its L x W = A.

    So first divide 54 by 9 and you get 6.

    9 is your length and 6 is your with.

    Perimeter = L + L + W + W or L x 2 + W x 2

    9 + 9 = 18 + 6 + 6 = 30 is your answer, so E
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