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

The curved surface area of a cone is 4070  large 4070;cm^2  and its diameter is 70 cm. What is its slant height ?

EXPLANATION
Explain TypeExplanation Content
Text

pi rl=4070cm^2

Where  r=frac {70}{2}=35cm

therefore         frac {22}{7} times 35 times l=4070

               l=frac {4070}{110}

             l=37cm

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