Words problem Related to Circle | sector and Cone

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A sector of a circle which subtends an angle of 216⁰ with a radius of 5cm is used to form a cone .
What is the total surface Area of the cone?
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Nice voice nicely explained keep up it

kanhiyasharma
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gosh, thank you very much! today I spaced out of not knowing wth teacher does with those sector

lunash
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Why didn't you use the values of pi

S.t.w.j
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