Math Placement Test Flashcards
formulas (22 cards)
1
Q
c=2πr
A
circumference of a circle
2
Q
a=πr2
A
area of a circle
3
Q
d=c/π
A
diameter of a circle
4
Q
Area of a circle?
A
a=πr2
5
Q
d=2r
A
diameter of a circle
6
Q
Radius of a circle
A
r=1/2d
r=c/2π
r=√a÷π
7
Q
Diameter of a circle?
A
d=c/π
d=2r
8
Q
r=1/2d
A
radius of a circle
9
Q
A= bh
A
Area of a parallelogram
10
Q
Area of a parallelogram?
A
A= bh
11
Q
r=c/2π
A
radius of a circle
12
Q
c=πd
A
circumference of a circle
13
Q
r=√a÷π
A
radius of a circle
14
Q
A=1/2bh
A
Area of a triangle
15
Q
a= sides squared
A
area of a square
16
Q
A = L x W
A
Area of a rectangle
17
Q
Area of a rectangle?
A
A= L x W
18
Q
Area of a square?
A
a=sides squared
19
Q
Area of a triangle?
A
A=1/2bh
20
Q
Circumference of a circle?
A
c= πd
c= 2πr
21
Q
Area of a trapezoid?
A
a= 1/2 (base number 1 + base number 2) h
22
Q
A= 1/2(base number 1 + base number 2) h
A
Area of a trapezoid
