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GENERAL MATH FORMULA
AREA FORMULAS
CIRCLE:
pr2
(p=constant=3.142(approx), and r = radius)
RECTANGLE:
ab (a = width and b = height of rectangle)
SQUARE:
a2 (a =
width = height of square, all sides
equal)
TRIANGLE:
1/2(bh) (b = base width and h = height of triangle)
SURFACE AREA
CYLINDER:
2p(r2
+ rh) (p=constant=3.142(approx), r = radius, h = height)
CUBE:
6a2
(a=length of each side of the cube)
SPHERE:
4pr2
(p=constant=3.142(approx), and r = radius)
CONE:
1/3pr2h
(p=constant=3.142(approx), r = radius, h = height)
CUBE:
a3 (a = length =
width = height of square, all sides
equal)
CYLINDER:
pr2h
(p=constant=3.142(approx), r = radius, h = height)
PYRAMID:
1/3(bh) (b = base width and h = height of pyramid)
VOLUME FORMULAS
SPHERE:
4pr2
(p=constant=3.142(approx), and r = radius)
CONE:
1/3pr2h
(p=constant=3.142(approx), r = radius, h = height)
CUBE:
a3 (a = length =
width = height of square, all sides
equal)
CYLINDER:
pr2h
(p=constant=3.142(approx), r = radius, h = height)
PYRAMID:
1/3(bh) (b = base width and h = height of pyramid)
RECTANGULAR PRISM:
abc (a = length, b = width and c = height of rectangular prism )
PERIMETER:
CIRCLE:
pd or 2pr
(p=constant=3.142(approx), d = diameter and r = radius)
SQUARE:
4a or a + a + a +a (a = length of each side of square)
RECTANGLE:
2(a + b) or a + b + a + b (a = length, b = height of rectangle)
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