EXERCISE 13.3Assume Ď, unless stated otherwise.iameter of the base

1.	EXERCISE 13.3Assume Ď, unless stated otherwise.iameter of the base of a cone is 10.5 cm and its slant height is 10 cm. Find its cusurface area.
Answer» Given: Diameter= 10.5 cmRadius (r) = 10.5/2 cm = 5.25 cm Slant height (l) = 10 cm Curved surface area of the cone = (πrl) =(22/7 × 5.25 × 10) =165 cm² Hence, the curved surface area of a cone =165cm² hit like if you find it useful

EXERCISE 13.3Assume Ď, unless stated otherwise.iameter of the base of a cone is 10.5 cm and its slant height is 10 cm. Find its cusurface area.

Answer»

Given: Diameter= 10.5 cmRadius (r) = 10.5/2 cm = 5.25 cm

Slant height (l) = 10 cm

Curved surface area of the cone = (πrl)

=(22/7 × 5.25 × 10)

=165 cm²

Hence, the curved surface area of a cone =165cm²

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