Find the radius of a circle whose circumference is 30.8cm 79.2cm
Answers
Answered by
0
Answer:
- Given : Circumference = 30.8 cm
Circumference of a circle = 2πr
→ 30.8 = 2πr
→ 15.4 = πr
→ r = 15.4 × 7/22 = 4.9
∴ Radius = 4.9 cm
- Given : Circumference = 79.2 cm
Circumference of a circle = 2πr
→ 79.2 = 2πr
→ 39.6 = πr
→ r = 39.6 × 7/22 = 12.6
∴ Radius = 12.6 cm
Similar questions