write the formulae of area and volume variables and constants in them
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1 . Perimeter Formulas
Shape
Formula
Variables
Square
P = 4 s
s is the length of the side of the square.
Rectangle
P = 2 L + 2 W
L and W are the lengths of the rectangle's sides (length and width).
Triangle
a + b + c
a , b , and c are the side lengths.
Right Triangle, with legs aand b (seePythagorean Theorem )
P = a + b + a 2 +b 2
a and b are the lengths of the two legs of the triangle
Circle
P = C = 2 π r = πd
r is the radius and d is the diameter.
2. Area Formulas
Shape
Formula
Variables
Square
A = s 2
s is the length of the side of the square.
Rectangle
A = L W
L and W are the lengths of the rectangle's sides (length and width).
Triangle
A = 1 2 b h
b and h are the base and height
Triangle
A = s ( s − a ) ( s −b ) ( s − c ) where s = a + b + c 2
a , b , and c are the side lengths and s is the semiperimeter
Parallelogram
A = b h
b is the length of the base and h is the height.
Trapezoid
A = b 1 + b 2 2h
b 1 and b 2 are the lengths of the parallel sides and hthe distance (height) between the parallels.
Circle
A = π r 2
r is the radius.
Table 3. Volume Formulas
Shape
Formula
Variables
Cube
V = s 3
s is the length of the side.
Right Rectangular Prism
V = L W H
L is the length, W is the width and H is the height.
Prism or Cylinder
V = A h
A is the area of the base, h is the height.
Pyramid or Cone
V = 1 3 A h
A is the area of the base, h is the height.
Sphere
V = 4 3 π r3
r is the radius
Shape
Formula
Variables
Square
P = 4 s
s is the length of the side of the square.
Rectangle
P = 2 L + 2 W
L and W are the lengths of the rectangle's sides (length and width).
Triangle
a + b + c
a , b , and c are the side lengths.
Right Triangle, with legs aand b (seePythagorean Theorem )
P = a + b + a 2 +b 2
a and b are the lengths of the two legs of the triangle
Circle
P = C = 2 π r = πd
r is the radius and d is the diameter.
2. Area Formulas
Shape
Formula
Variables
Square
A = s 2
s is the length of the side of the square.
Rectangle
A = L W
L and W are the lengths of the rectangle's sides (length and width).
Triangle
A = 1 2 b h
b and h are the base and height
Triangle
A = s ( s − a ) ( s −b ) ( s − c ) where s = a + b + c 2
a , b , and c are the side lengths and s is the semiperimeter
Parallelogram
A = b h
b is the length of the base and h is the height.
Trapezoid
A = b 1 + b 2 2h
b 1 and b 2 are the lengths of the parallel sides and hthe distance (height) between the parallels.
Circle
A = π r 2
r is the radius.
Table 3. Volume Formulas
Shape
Formula
Variables
Cube
V = s 3
s is the length of the side.
Right Rectangular Prism
V = L W H
L is the length, W is the width and H is the height.
Prism or Cylinder
V = A h
A is the area of the base, h is the height.
Pyramid or Cone
V = 1 3 A h
A is the area of the base, h is the height.
Sphere
V = 4 3 π r3
r is the radius
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