7. The length and the breadth of a hall are 20 m and 15 m respectively. Find the area of the four walls of the hall if the height of the hall is 10 m.
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Answered by
1
Answer:
Given the area of four wall of the hall is 1068 sq cm and breadth 15 m and height is 8 m and let the length is x cm
The area of four wall of hall =2(l+b)h=2(x+15)8
But area of four wall given 1068 sq m
2(x+15)8=1068⇒x+15=
16
1068
⇒x=66.75−15=51.75 cm
the length is 51.75 cm
Answered by
2
Answer:
700m^2m
Step-by-step explanation:
length = 20m
breathe =15 m
surface area =2×(L+B)×H
=2×35×10=700m^2m
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