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

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