please answer this question 4 marks maths surface area and volumes
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Here is your solution
Given:-
Length = 22m
Breadth = 20m
Radius of conical vessel = 2/2 =1m
Height of conical vessel =3.5m
Now
Volume of rainwater=volume of conical vessel
= pi ×r ^2 × h
=3.14 × 1×1×3.5
=11m^3
Volume of rainwater=22×20×d
11m=440×d
d=11/440
d=0.025
d= 0.25cm
Hence
Rainfall in cm is 0. 25cm
Hope it helps you
Given:-
Length = 22m
Breadth = 20m
Radius of conical vessel = 2/2 =1m
Height of conical vessel =3.5m
Now
Volume of rainwater=volume of conical vessel
= pi ×r ^2 × h
=3.14 × 1×1×3.5
=11m^3
Volume of rainwater=22×20×d
11m=440×d
d=11/440
d=0.025
d= 0.25cm
Hence
Rainfall in cm is 0. 25cm
Hope it helps you
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