Question

how many metres of cloth 5 m wide will be required to make a conical tent the radius of whose base is 7m and whose height is 24 m

Answer 1

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Answer 2

Q:How many metres of cloth 5 m wide will be required to make a conical tent the radius of whose base is 7m and whose height is 24 m

=>Given,

Radius(R)=7 m
Height(H)=24 m

•°•Slant Height,L=√(r^2 + h^2)= √(7^2 + 24^2) = √625 m = 25 m^2

Curved Surface Area = π r l= 22/7 x 7 x 25m^2 = 550 m^2

Area of the cloth = 550 m^2

Now, width of the cloth = 5 m
Length of the cloth = Area/Width = 550 / 5 = 110m.

Hence,length of the cloth is 110 m.