Math2.org Math Tables: Areas, Volumes, Surface Areas |
(Math) |
square = a^{2}
rectangle = ab
parallelogram = bh
trapezoid = h/2 (b_{1} + b_{2})
circle = pi r^{ 2}
ellipse = pi r_{1} r_{2}
triangle = (1/2) b h
equilateral triangle = (1/4)(3) a^{2}
triangle given SAS = (1/2) a b sin C
triangle given a,b,c = [s(s-a)(s-b)(s-c)] when s = (a+b+c)/2 (Heron's formula)
regular polygon = (1/2) n sin(360°/n) S^{2}
when n = # of sides and S = length from center to a corner
cube = a^{3}
rectangular prism = a b c
irregular prism = b h
cylinder = b h = r^{2} h
pyramid = (1/3) b h
cone = (1/3) b h = 1/3 r^{2} h
sphere = (4/3) r^{3}
ellipsoid = (4/3) pi r_{1} r_{2} r_{3}
cube = 6 a^{2}
prism:
(lateral area) = perimeter(b) L
(total area) = perimeter(b) L
+ 2b
sphere = 4 r^{2}
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