Question

diameter of base of cone is 10.5 cm and slant height is 10 cm find the curved surface area​

Answer 1

Answer:

Curved surface area = 165cm²

Explanation:

Dimensions of a cone:

diameter (d) = 10.5cm

radius (r) = d/2 = (10.5)/2

slant height (l) = 10cm

Curved surface area = πrl

= (22/7)×(10.5/2)×10

= 11×1.5×10

= 11×15

= 165 cm²

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Answer 2

$csa=\pi \times r \times l$

$22/7 \times 5.25 \times 10$

= 22/7 x 52.5

=22 x 7.5

=165