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Maths / Surface Area and Volume / Lateral Surface Area of Cone
QUESTION
 

Find the curved surface area of a right circular cone whose slant height is 10 cm and base radius is 7 cm.

OPTIONS
A. 

large 220 ; cm^2

B. 

large 120 ; cm^2

C. 

large 140 ; cm^2

D. 

large 200 ; cm^2

Right Option : A
EXPLANATION
Explain TypeExplanation Content
Text

Curved surface area  large = pi rl

                              = frac {22}{7} times 7 times 10 ; cm^2

                               =220 ; cm^2

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