the dimensions of a prayer hall are 20m×15m×8m,calculate its lateral surface area with explanation
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Step-by-step explanation:
let length and breadth be 20m and 15m respectively and height be 8m.
Area of walls = LSA of cuboid
= 2h(l+b)
2×8(20+15)
16×35
560 sq. m.
Cost of painting 1sq. m.wall= at rate of Rs.15
Therefore cost of painting sq. m.=560×15
=8400Rs
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