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Complete the table below.

Radius (r) | Diameter (d) | Circumference (c) |

_______ | _________ | 72.6 cm |

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#### Solution

Circumference, c = 72.6 cm

Now, c = 2πr .........(where 'r' is the radius)

⇒ 72.6 = `2xx22/7xx"r"`

⇒ r = `72.6xx1/2xx7/22`

⇒ r = 11.55

So, radius = 11.55 cm

Diameter, d = 2r = 2 × 11.55 = 23.1 cm

Radius (r) | Diameter (d) | Circumference (c) |

11.55 cm |
23.1 cm |
72.6 cm |

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