Math Formulas Flashcards
0
Q
Perimeter of rectangle
A
2(length+width)
1
Q
Area of Triangle
A
Area=1/2(base)(height)
2
Q
Area of rectangle
A
Length x width
3
Q
Area of square
A
(Side)^2
4
Q
Area of parallelogram
A
(Base)(height)
5
Q
Area of trapezoid
A
(Average of parallel sides) x (height)
6
Q
Circumference of a circle
A
2PI(r) or PI(D)
7
Q
Area of circle
A
PI(r)^2
8
Q
Isosceles
A
Two equal sides, 2 equal angles
9
Q
Equilateral
A
3 equal sides, 3 60 degree angles
10
Q
Right triangle
A
Ratios:
3: 4:5
5: 12:13
11
Q
Ratio of 45, 45, 90 isosceles
A
1:1:square root 2
12
Q
Ratio of 30, 60, 90
A
1:square root 3:2
