Question

please help a I don't know​

Answer 1

Answer:

Fencing refers to the building of coiled wire or a boundary across the perimeter of the rectangular field given. It is said that Fencing is to be done 4 times.

Hence Fencing can be written as: 4 × ( Perimeter of Field )

Dimensions of the field;

• Length = 10 m
• Breadth = 8 m

⇒ Perimeter of a rectangle = 2 ( l + b )

⇒ Perimeter of the rectangular field = 2 ( 10 + 8 )

⇒ Perimeter = 2 ( 18 ) = 36 m

So for 1 round of fencing it is 36m. Hence for 4 times of fencing, the length of wire would be: 4 × 36 = 144 m

Hence length of wire needed is 144 m.

Answer 2

Length of garden = 10 m

Breadth of garden = 8 m

Perimeter of garden = 2(l + b)

= 2(10 + 8) = 2(18) = 36 m

Length of Fencing = Perimeter of garden

Length of fecing if it is fenced four times = 4 × Perimeter of garden

= 4 × 36 = 144 m

Hence

Length of fencing wire required = 144 m

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