Question

A room I'd 8m60cm long , 3m50cm wide and 2.2m into 1.56m .find the cost of the wall paper used on its walls, which costs rupees 42 per meter2
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Answer 1

Answer:

Rs. 2234.4

Step-by-step explanation:

Given,

Length of room = 8.6m

Breadth of room = 3.5m

Height of room = 2.2m

First we have to find the Curved Surface Area,

Formula => 2(bh+hl)

Solution => 2[(3.5)(2.2)+(2.2)(8.6)]

=> 2[7.7+18.9]

=> 53.2m^2

We know, Cost=Area*Rate ( '*' Signifies multiplication)

By putting values, Cost=53.2*42

Cost=2234.4

Hence, the cost of wallpaper would be Rs 2234.4

Hope you like the explanation :)