Question

if it cost dollar 1600 to fence a rectangular Park of length 20m at the rate of dollar 25 per square m. find the breadth of the park and its perimeter, also find the area of the field.​

Answer 1

Question :-

if it cost dollar 1600 to fence a rectangular Park of length 20m at the rate of dollar 25 per square m. find the breadth of the park and its perimeter, also find the area of the field..

Given :-

• Cost to fence a rectangular park with length 20m = $1600

• $25 for per square m.

To Find :-

• The breadth and it's perimeter.

Solution :-

It's given that for 20 m it cost $1600. Therefore, Perimeter = 1600/25 = 64 m

Therefore, the perimeter of the rectangular park is 64 m.

★ Breadth :-

⇒Perimeter = 2 ( l + b )

⇒64 m = 2 ( l + b )

⇒64 /2 = l + b

⇒32 = l + b

We know that l = 20, so,

⇒l + b = 32

⇒20 + b = 32

⇒b = 32 - 20

⇒b = 12 m

Therefore, the breadth of the rectangular park is 12 m.

★ AREA :-

⇒Area = l × b

⇒Area = 20 × 12

⇒Area = 240 m²

Therefore, the area of the rectangular park is 240 m²

Joyful learning!!!⛅