Q. 34.1( 15 Votes )

# A cloth having an

Answer :

__Given:__ Area of cloth = 165m^{2}

Radius of conical tent = 5m

Curved surface area of cone = πrl

Where,

r = radius of a cone

l = slant height of a cone

Thus,

i)

Thus,

ii) Now, By using formula we can find height of a cone i.e.

r^{2} + h^{2} = l^{2} where r=radius of a cone

h=height of a cone

l=slant height of a cone

⇒ (5)^{2} + h^{2} = (10.5)^{2}

⇒ 25+ h^{2} = 110.25

⇒ h^{2} = 110.25 – 25 = 85.25

⇒ h = √85.25 = 9.23 m

Where

r = radius of base of a cone

h = height of a cone

Thus,

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