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Question
Complete the table below.
| Radius (r) | Diameter (d) | Circumference (c) |
| ...... | ...... | 616 cm |
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Solution
Circumference, c = 616 cm
Now, c = 2πr ...(where 'r' is the radius)
⇒ 616 = `2xx22/7xx"r"`
⇒ r = `616xx1/2xx7/22`
= `(616 xx 7)/(2 xx 22)`
= `4312/44`
⇒ r = 98
So, radius = 98 cm
Diameter, d = 2r
= 2 × 98
= 196 cm
| Radius (r) | Diameter (d) | Circumference (c) |
| 98 cm | 196 cm | 616 cm |
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