Question

The length and breath of a rectangle for field is 30 m and 21m respectivaly. find the length of a wire required to fences the boundary 4 times​

Answer 1

Length of rectangular field = 30 m.

Breadth of a rectangular field = 21 m.

Perimeter of rectangular field = 2( l + b )

= 2( 30 + 21 )

= 2 × 51

= 102 m

Wire required to fence 4 times = 102 × 4

= 408 m.

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Answer 2

First find the perimeter of the field. Perimeter of rectangle = 2(l+b) = 2 (30+21 ) = 2(51) = 102m.
The length of a wire required to fence the boundary 4 times = 102x4 = 408m.
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