Question

volume of a cone is 9856^2.if diameter of base is 28 cm find its tsa

Answer 1

Step-by-step explanation:

Given:

r=228=14cm

(i)Let height =h

⇒Volume =9856=31πr2h

9856=31×722×14×14×h

⇒h=48cm

(ii)⇒Slant height =r2+h2=142+482=196+2340=50cm

(iii)⇒Curved Surface Area =πrl=722×14×50cm2

=22004cm2