a tent is in the form of a cylinder of diameter 4.2 metre and height for sir mounted by a cone of equal base and height 2.8 metre find the capacity of the tent and the cost of Canvas for making the tent at rupees hundred square metre
Answers
Answer:
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Step-by-step explanation:
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Given :-
D of Cone and hemisphare = 4.2 m
so , r of / / and / / i = 4.2 /2 = 2. 1 m
H of cylinder = 4 m
h of cone = 2.8 m
solution:-
volume of tent = volume of cone + Volume of cylinder
= 1/3πr^2h + πr^2H
= 1/3*22/7*2.1*2.1*2.8 + 22/7*2.1
*2.1*4
=22/7*2.1*2.1(1/3*2.8+4)
=13.86(14.8/3)
=38.876 m^3 ans.
l = √r^2+h^2
=√2.1*2.1+2.8*2.8
= √7.84+4.91
=√12.25
=3.5m
CSA of tent = CSA of cone +CSA of cylinder
= πrl+2πrH
= 22/7*2.1(3.5+2*4)
= 6.6*11.5
=75.90 m^2 ans.
Cost for making 1m^2 = 100rs
so,cost for making 75.90 m^2=75.90*100
= 7590rs.
ANSWER IT
Step-by-step explanation:
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