Question

20. The diameter of the base of a cone is 10.5 cm, and its slant height is 10
cm. The curved surface area is: *
a) 150 sq.cm

b) 165 sq.cm

c) 177 sq.cm

d) 180 sq.cm​

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Answer 1

Step-by-step explanation:

diameter = r/ 2

10.5/2 = 5.25

CSA of cone= πrl

=22/7 × 5.25× 10

=165