Calculate the total surface area of a cone of height 12cm and base radius 5cm take pie=22 all over 7

Answer 1

The total surface area of a cone can be calculated using the formula:

Total Surface Area = π*radius*(radius + slant height)

First, we need to calculate the slant height:

Slant height (l) = √(radius^2 + height^2)
= √(5^2 + 12^2)
= √(25 + 144)
= √169
= 13 cm

Now, we can calculate the total surface area:

Total Surface Area = (22/7)*5*(5 + 13)
= (22/7)*5*18
= 330 cm^2

Therefore, the total surface area of the cone is 330 cm^2.