Question

find the total surface area of a cone if it's slant height is 23 cm and diameter of its base is 24 cm?​

Answer 1

Answer:

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Answer 2

Answer:

l = 23cm

r = d/2

=24/2

r = 12cm

Step-by-step explanation:

The total surface area of the cone = πr(l + r)

= 22/7 × 12 (23 + 12)

= 22/7 × 12 (35)

= 22/7 × (420)

= 22 × 60

= 1320cm ^2