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Ch 12 Formulas

STUDY
PLAY
Sides: 7
heptagon
Sides: 10
decagon
Sides: 12
dodecagon
Sides: 15
pentadecagon
Lateral area of a cylinder
2πrh (Ch)
Total area of a cylinder
2πrh + 2Abase
Lateral area of a cone
πrl (1/2 C l) (l = lateral edge)
Total area of a cone
πrl + Abase
Surface area of a sphere
4πr^2
Volume of rectangular prism
lwh (Bh)
Volume of right triangular prism
Bh
Volume of any prism
Bh
Common formula for area of hexagon
1/2ap
Volume of a Cylinder
πr^2h (Bh)
Volume of prism/ cylinder
Cross section x h
Volume of a pyramid
1/3Bh
Volume of a cone
1/3πr^2h
Ratio of Cross section of area to base
(k/h)^2
Volume of a sphere
4/3πr^3