# Calculate the total surface area of a cone of height 12cm and base radius 5cm. Take π=22/7..?

##### 2 Answers

Jul 6, 2018

#### Explanation:

The total surface area of a cone is the sum of the area of the base and the lateral area:

Where:

r = radius

s= slant height

To find the slant height consider the right triangle formed by the radius(base), the height(vertical leg) then the slant height is the hypotenuse so:

Thus:

Jul 7, 2018

#### Explanation: