Question

The area of a rectangle lawn is 1800sqm .if its length is 50m ,find the length of rope required to fence it.

Answer 1

Answer:

Step-by-step explanation:

L * B = AREA

1800/50 = B

B = 36m

Length of rope = perimeter of the lawn

= 2(50 + 36) = 2 * 86 = 172 m

Answer 2

$area \: of \: rect. = length \: \times breadth \\ 1800 = 50 \times b \\ b = 36m \\ length \: of\:rope \: required = perimeter \: of \: rectangle \\ =perimeter = 2(l + b) \\ = 2(50 + 36) \\ = 2 \times 86 \\ = 172m$

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