Question

The area of a square garden is 324² find it's length

find it's perimeter
find the cost of fencing it with five round at Rs40 per meter​

Answer 1

length = 18m

perimeter = 72m

cost of fencing for 5 rounds = Rs. 14400

Explanation:

area of square garden = 324 m²

length = ?

area of square = a²

where a is the length

according to the question,

324 = a²

a = √324= 18m

perimeter of square = 4a

where a is the length of the side,

perimeter = 4 * 18 = 72m

cost of fencing for 1m is Rs.40

fence we need for square garden = 72m

cost of fencing for 1 round = 72 * 40 = Rs. 2880

cost of fencing for 5 rounds = 2880 * 5 = Rs. 14400