Area Formulas Flashcards
1
Q
Area of Rectangle
A
Area = l × w
l = length
w = width
2
Q
Area of Square
A
Area = a 2
a = sides of the square
3
Q
Area of a Triangle
A
Area = 1/2 b×h
b = base
h = height
4
Q
Area of a Circle
A
Area = πr2
r = radius of the circle
5
Q
Area of a Trapezoid
A
Area = 1/2 (a + b)h
a =base 1
b = base 2
h = vertical height
6
Q
Area of Ellipse
A
Area = πab
a = radius of the major axis
b = radius of the minor axis
7
Q
Circumference of Circle
A
2 π r
r = radius of circle
8
Q
A
