how many metres of cloth 1m 10cm wide,will be required to make a conical circus tent whose height is 12m and the radius whose base is 10m
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135
Solution:-
Given : r = 10 m and h = 12 m
∴ Slant Height 'l' = √r²+h²
l² = √10²+12²
l² = √100+144
l² =√244
l = 15.62 m
Curved surface area of the conical tent = πrl
= 22/7*10*15.62
= 3436.4/7
Curved surface area of tent or area of the cloth used = 490.91 sq m
Width of the cloth = 1.1 m
Length of the cloth used = 490.91/1.1
= 446.28 m
Answer.
Given : r = 10 m and h = 12 m
∴ Slant Height 'l' = √r²+h²
l² = √10²+12²
l² = √100+144
l² =√244
l = 15.62 m
Curved surface area of the conical tent = πrl
= 22/7*10*15.62
= 3436.4/7
Curved surface area of tent or area of the cloth used = 490.91 sq m
Width of the cloth = 1.1 m
Length of the cloth used = 490.91/1.1
= 446.28 m
Answer.
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24
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