Question

The radius and height of a solid
right circular cone are in
ratio of 5:12 If its volume
is 314 cm³, find its total
surface area.​

Answer 1

Answer:

the total surface area of the cone = 282.6

Step-by-step explanation:

given : height =12cm

radius = 5cm

slant height = √5^2+12^2

                         √25+144

                          √169

                          slant height = 13 cm

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

22/7*5(5+13)

22/7*5(18)

15.7*18

=282.6cm2