The circumference of a circle is 88cm, find its diameter?
- A14cm
- B7cm
- C28cm
- D21cm
Solution & Step-by-step Explanation
Let the radius of the circle be r.
Circumference=2πr=88cm
2×
7
22
×r=88
7
44
×r=88
r=88×
44
7
=2×7=14cm
Diameter=2r=2×14=28cm
Circumference=2πr=88cm
2×
7
22
×r=88
7
44
×r=88
r=88×
44
7
=2×7=14cm
Diameter=2r=2×14=28cm