30.007
300/10=30
7/1000=.007
30+.007=30.007
X = 180 - 58 - y
Y = 180- 126= 54
X= 180 - 58 - 54
X= 180- 112= 68 degrees
Remember that radius is half of the diameter (1/2 d)
10 * 2 = 20
20 is the diameter.
c
--- = 3.14 Get 'c' by itself by multiplying 20 to both sides
20
This eliminates the '20' in c/20
c = 3.14 (20)
Multiply.
c = 62.8
Your circumference is 62.8