Math, asked by billalrtr, 8 days ago

The dimensions of a prayer hall are 20m,15m,8m find the cost of painting it's walls at the rate of rupees 15 metre square​

Answers

Answered by abhi569
2

Answer:

Rs 8400

Step-by-step explanation:

Area of 4 walls = 2(l + b)h

Given, l = 20m, b = 15m, h = 8 m

∴ Area of 4 walls = 2(20+15)8

                            = 560 m²

∴ Cost of painting = rate x area

                        = Rs 15 x 560

                        = Rs 8400

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