Find the total surface area of a right circular cone, if the height of – InterviewSolution

1.	Find the total surface area of a right circular cone, if the height of the cone is 10cm and the circumference of the base is 88 cm.
Answer» AnswerCorrect OPTION isB600π CM 2 We have,CIRCUMFERENCE =120π cm, slant height(l)=10 cm⇒2πr=120π⇒2r=120⇒r=60 cmWe know that the CURVED SURFACE area of the cone=πrlSo,=π×60×10=600π cm 2 Hence, this is the answer

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