Question

The volume of a right circular cone is 9856 cm³ . If the diameter of the base is 28cm find height of the cone, slant height of the cone, curved surface area of the cone.​

Answer 1

Step-by-step explanation:

volume=1/3×pi×r^2×h

9856=1/3×22/7×14×14×h

9856=616/3×h

616h=29568

h=29568/616

=48cm.

l^2=h^2+r^2

l^2=48^2+14^2

l^2=2304+196

l^2=2500

l=50cm.

curved surface area=pi×r×l

=22/7×14×50

=44×50

=2200cm^2.