How many square meters of canvas is required for a conical tent whose height is 3.5 m and the radius of the base is 12 cm?
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Answered by
514
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Question : How many square meters of canvas is required for a conical tent whose height is 3.5 m and the radius of the base is 12 m?
We need to find the surface area of canvas required to make a conical tent of height 3.5m and radius 12m .
Here, We need to find Lateral surface Area of the cone with given measures.
Before going to find that out, We need to find slant height of the cone ( l) because L. S. A = πrl
We know that,
l² = r² + h²
l² = 12² + 3.5²
l² = 156.25
l = √156.25 = 12.5m .
Now,
Lateral surface Area = π rl = 3.14 ( 12.5)( 12 ) = 471 m²
Therefore, Required length of canvas = 471m²
Hope helped!
Question : How many square meters of canvas is required for a conical tent whose height is 3.5 m and the radius of the base is 12 m?
We need to find the surface area of canvas required to make a conical tent of height 3.5m and radius 12m .
Here, We need to find Lateral surface Area of the cone with given measures.
Before going to find that out, We need to find slant height of the cone ( l) because L. S. A = πrl
We know that,
l² = r² + h²
l² = 12² + 3.5²
l² = 156.25
l = √156.25 = 12.5m .
Now,
Lateral surface Area = π rl = 3.14 ( 12.5)( 12 ) = 471 m²
Therefore, Required length of canvas = 471m²
Hope helped!
Answered by
120
Answer:
LSA of cone : πrl
l= r^2+h^2
l=3.5^2+12^2
l= 12.25 + 144
l= root 156.25
l = 1.25
πrl
3.14 x 12 x 1.25
47.1
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