Question

find the sum with explanation

Answer 1

Answer:

( i ) 34 m

( ii ) 136 m

( iii ) Rs. 850

( iv ) Rs. 28, 900

Step-by-step explanation:

( i ) Let the length of each side be x.

Hence,

x^2 = Area of the square

x^2 = 1156

x = 34 m

1156 = 2 × 2 × 17 × 17 = 2^2 × 17^2

Thus, √ 1156 = 2 × 17 = 34

( ii ) Perimeter of the square = 4 × x

Perimeter = 4 × 34

Perimeter = 136 m

( iii ) Total land to be fenced is equal to the Perimeter of the square.

Since, perimeter = 136 m , cost of fencing = Rs. 6. 25 / m,

Total cost = 136 × 6.25 = Rs. 850

( iv ) Total area to be grassed = Area of square = 1156 m^2

Cost = Rs. 25 / m^2

Total cost = 1156 × 25 = Rs. 28, 900