ăŁ?Assume Ď =-, unless stated otherwise.Diameter of the base of

1.	ăŁ?Assume Ď =-, unless stated otherwise.Diameter of the base of a cone is 10.5 em and its slant height is 10 em. Find tis curvedif ito lnt hoiht is 21 m and diameter of its basend thesrface area.
Answer» Given: Diameter= 10.5 cm Radius (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

ăŁ?Assume Ď =-, unless stated otherwise.Diameter of the base of a cone is 10.5 em and its slant height is 10 em. Find tis curvedif ito lnt hoiht is 21 m and diameter of its basend thesrface area.

Answer»

Given: Diameter= 10.5 cm

Radius (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