15. If the dimensions of a conference hall are 40 m long, 30 m wide and 35 m high, then find the cost of whi
the four walls at the rate of 2.50 per m².
Answers
Answered by
12
Answer:
12250
Step-by-step explanation:
lateral surface are of cuboid = 2h(l+b)
= 2*35(40+30)
=70*70
= 4900m^2.
rate per m^2 = 2.50
= 2.50* 4900
= 12250
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