# Calculate the total surface area of the cone if the generatrix length is 10 cm and the radius is 3 cm.

July 26, 2021 | education

| First, let’s draw a cone, in which we denote the radius as 3 cm, and denote the generatrix as 10 cm.

Then, to find the full surface of the cone, you need to find the area of the base and the area of the lateral surface.

Then the area of the base is: 3.14 * 3 * 3 = 28.3 cm2.

And the side area is 3.14 * 3 * 10 = 94.3 cm2.

Then the total surface of the cone is equal to: 94.3 + 28.3 = 122.6 cm2.

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