Question

6. The volume of a right circular cone is 9856 cm?. If the diameter of the base is 28 cm,
find
(i) height of the cone
(i) slant height of the cone
(iii) curved surface area of the cone
12 mond 13 cmis revolved about the side 12 cm​

Answer 1

Answer:

ANSWER

Given:

r= 28/2 =14cm

(i)Let height =h

⇒Volume =9856= 1/3 πr^ 2 h

9856= 1/3 × 22/7 ×14×14×h

⇒h=48cm

(ii)⇒Slant height = √r^ 2+h ^2 = √14 ^2+48 ^2

= √196+2340

=50cm

(iii)⇒Curved Surface Area =πrl= 22/7 ×14×50cm ^2

=22004cm ^2

Answer 2

you gave me wrong ans lazy