Question

A classroom is 11m long 8m wide and5m high Find the cost of cementing it's floor and wall at the rate of rupee 20per msquare

Answer 1

Answer:

190m²

Step-by-step explanation:

•Lenght= 11m

•Breadth= 8m

•Height= 5m

We know that,

Area of Floor= Area of rectangle

= L×B

= 11×8

= 88m

Area of 4 walls= 2(L+B)×H

= 2(11+8)×5

= 2×19×5

= 190m²

Hope this helps~

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