Q. 94.7( 11 Votes )

# The curved surface area of a cone is 4070 cm^{2} and its diameter is 70 cm. What is its slant height? (Use π=22/7).

Answer :

We have,

Area of curved surface = π*rl* = 4070 cm^{2}

Radius of base *r* = 70/2 = 35 cm

= ×35×*l* =4070 = *l* = 37 cm

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