Answer:
Radius =21
Step-by-step explanation:
Circumference=2πr
Circumference=132 cm
π=22/7
Radius=r
Insert items into the formula
132=2x22/7r
132=44/7r
Multiply through by the LCM of the denominators=7
7x132=7x44/7r
7x132=44r
Divide both sides by 44
7x132/44=44/44r
7x3=r
21=r
