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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