Cone volume: V= bottom area × height ÷3

Side area of cylinder: S-side = bottom circumference × height.

Surface area of cylinder: S table = lateral area +2 bottom area.

Cone area formula:

S side = π rl = (nπ l 2)/360 (r: base radius, l: conic generatrix, n: degree of central angle)

Bottom circumference (C)=2πr=(nπl)/ 180(r: bottom radius, n: central angle, l: bus length)

H= root sign (L 2-R 2) (L: bus length, R: bottom radius)

Total area =S side +S bottom

V =1/3sh =1/3π r2h (s: bottom area, r: bottom radius, h: height).

V (cone) = 1/3 V (cylinder) = 1/3 SH = 1/3 π r 2h (S: bottom area, r: bottom radius, h: height).