Question

Find the perimeter of a rectangular field whose length is 4 times its width and which has area equal to 20736 sq. m.

Answer 1

Answer:

Step-by-step explanation:

Area of rectangle=L X B

Let B be x and length 4x

4x X x=20736

4x²=20736

x²=20736÷4

x²=5184

x=√5184

x=72

B=72m

L=72 X 4=288m

Perimeter of rectangle=2(L+B)

2(288+72)

2 X 360

=720m

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