Question

please solve
5. The perimeter of a square courtyard is 144 m. Find the cost of cementing it at the rate of 15 per m²​

Answer 1

Answer:

perimeter of square = 4 × a

144/ 4 = a

36 = a

area of square = side × side

= 36 × 36

= 1296 m

the cost of cementing = 1296 × 15

= 19440

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