Question

how much would it cost to erect a fence around a hectare square shaped farm if it cost 23 rupis per meter ?

Answer 1

area = 10,000 m sq

length = 100 m

perimeter = 4 x Length = 400

cost = 23 x 400 = 9200 rpz

Answer 2

1 Hectare = 10,000 square metres

Since farm is a square

Area of farm = 1 Hectare = 10,000 sq. metres

(Side)^2 = 10,000 sq. metres

side = square root of (10,000)

Therefore, Side = 100 metres

Perimeter of square = 4×(Side)

Perimeter = 4×(100)

Perimeter = 400 metres

Since , Cost of erecting fence for 1 metre = 23
rupees

Cost of erecting fence for farm = 23×400

Cost of erecting fence for farm = 9200 rupees