The section of a solid right circular cone by a plane containing vertex and perpendicular to base is an equilateral triangle of side 10 cm. find the volume of the cone?
a. 221.73 cm3
b.223.73 cm3
c.228.73 cm3
d.226.61 cm3
Answers
Answered by
95
Volume of the cone = ⅓ (π×r×r×h)
since the cone is formed from by an equilateral triangle. all sides are equal
that is slope = diameter = 10
so height = (10^2) - (5^2) = √75 [by hypotenuse theorem]
= 8.66
volume = ⅓ (8.66×3.14×25)
= 226.61 cm3
Please mark my solution as BRAINliest
since the cone is formed from by an equilateral triangle. all sides are equal
that is slope = diameter = 10
so height = (10^2) - (5^2) = √75 [by hypotenuse theorem]
= 8.66
volume = ⅓ (8.66×3.14×25)
= 226.61 cm3
Please mark my solution as BRAINliest
Similar questions