Volume And Area Formulas

box Rectangular box

Volume = l w h
circle Circle

Area = π r2

Circumference = 2 π r
cone Cone

Volume =   π r2 h
3
Cylinder

Volume = π r2 h
pyramid Pyramid

Volume =   h a2
3
rectangle Rectangle

Area = l w

Perimeter = 2 l + 2 w
sphere Sphere

Surface Area = 4 π r2

Volume =   4 π r3
3
triangle Triangle

Area =   1
2		 b h
Right triangle Pythagorean Theorem

a2 + b2 = c2
Two triangles are similar if corresponding angles are equal.
two similar triangles
If △ABC is similar to △A′B′C′, then the ratios of corresponding sides are equal:

a
a′		 =  b
b′		 = c
c′