The diameter of the base of a cone is 10.5 cm and its length height its slant height is 10 centimeter the curved surface area is

Answers

Answered by Mohammad Tariq Aziz
The diameter of the base of a cone is 10.5 cm and its length height its slant height is 10 centimeter the curved surface area is
Answered by R_scott
the curved surface is a portion of a Circle

the slant height is the radius of the Circle

the circumference of the base of the cone
... is a portion of the circumference of the Circle

area (A) of the Circle ... π * 10^2 = 100 π cm^2

circumference of the Circle ... π * 20 cm

circumference of the base of the cone ... π * 10.5 cm

curved surface area of the cone ... [(10.5 π) / (20 π)] * 100 π cm^2

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