Question

Find the curved surface area of the cone whose diameter is 28 cm and height is 10.5 cm
a-776 cm2
b-770 cm2
c-759 cm2
d-785 cm2

Answer 1

Answer:

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Answer 2

Answer:We know that formula of the curved surface area of a cone is πrl, where r is the base radius and l is the slant height of the cone.

Step-by-step explanation: Here, given the base radius, r=5.6cm

                          slant height, l=9cm

∴ Curved surface area of the cone= πrl

=  

7

22

​  

×5.6×9

=  

7

1108.8

​  

 

=158.8cm  

2

.