Circles
What is circumference
The distance around a circle
What is a proportional relationship
quantities that decrease and increase at the same rate
18/27
56/8
2/3
7
Diamiter=9in
C=
C=
C=
C=9pi
C=28.2743in
C=28.27in
what is a scale drawing
increases or decreases size at same rate exact accurate
40/44
8/72
11
9
What is radius
what is diameter
Radius: half the diameter
diameter: double the radius
why does multiply by 3.14 work for any size circle big or small
Same scale factor
40/55
6/82
1.375
13.66