diameter of the base of a cone is 10.5 centimetre and its slant height is 10 cm find its curved surface area
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Answer:
csa = 165
Step-by-step explanation:
formula for curved surface area is Πrl
now in this diameter is given so first we have to find radius i.e., d/2 = 10.5/2 = 5.25
therefore, the csa of cone with given radius and slant height i.e., 10 is 22/7 × 5.25 × 10 = 165
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