A cone whose axis section is an equilateral triangle is called an equilateral cone. Given that the bottom radius of the equilateral cone is r, its surface area and volume can be calculated

A cone whose axis section is an equilateral triangle is called an equilateral cone. Given that the bottom radius of the equilateral cone is r, its surface area and volume can be calculated

The radius of the bottom surface is r,
Then the height of the cone H = R * tan60 ° = √ 3 R,
Bus a = R / sin30 ° = 2R,
Surface area s = π R ^ 2 + π RA = 3 π R ^ 2,
Volume v = (1 / 3) π R ^ 2 * H = (2 √ 3 / 3) π R ^ 3

Elden Ring Premiere

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