Circle Parts
Draw a radius.
Circumference when d = 2
C = 6.28
-5 X -6 X 1 =
30
Perimeter of a semi-circle with d = 5
p = 12.85
24 /-4
-6
Draw a diameter.
A line segment from two points on the circle that goes THROUGH the CENTER.
Circumference when d = 21
C = 65.94
2 X (-3) X 5 X 2
-60
Perimeter of a semi-circle with d = 12
P = 30.84
(-48)/-12
4
If the diameter is 26, what is the radius?
13
Circumference when r = 4
C = 25.12
-5/8 * -4/5
1/2
Perimeter of a quarter circle with r = 3
P = 10.71
(-11) / .5
-22
If the radius is 14, what is the diameter?
28
Circumference when r = 5
C = 31.4
7/9 * (-6/11)
-14/33
Perimeter of a quarter circle with r = 10
P = 35.7
(-5)/8 / 6/5
(-25)/48
Rewrite this as an equivalent fraction with 100 as the denominator.
11/20
55/100
Circumference when r = 2.3
C = 14.444
(-1/2)^3
-1/8
Rewrite this as a fraction with a denominator of 1000.
111/500
222/1000
(-6 + -2) / (4 - 6)
4