a room is 5.2 M long 4.5 M wide and 3.5 M height find the area of its 4 valve find also the cost of pending the the ceiling at the rate rupees 12 per square metre
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Hi
Your question is a bit wrong...
It will be walls(not valve) and painting (not pending)...
Sol.-
Area of 4 walls( Lateral surface area)= 2(l+b)h
A.T.Q.
Therefore, 5.2m×4.5m×3.5 = 81.9m^2
Cost of painting 1 sq.m = 12Rupees
Thus, cost of painting 81.9 sq.m=982.8 rupees..
Hope it helps
Your question is a bit wrong...
It will be walls(not valve) and painting (not pending)...
Sol.-
Area of 4 walls( Lateral surface area)= 2(l+b)h
A.T.Q.
Therefore, 5.2m×4.5m×3.5 = 81.9m^2
Cost of painting 1 sq.m = 12Rupees
Thus, cost of painting 81.9 sq.m=982.8 rupees..
Hope it helps
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