Question

# If radius of a circle is halved then,

A

the diameter will be doubled

B

the diameter will be halved

C

the diameter will be tripled

D

the diameter will be same

Solution

## The correct option is C the diameter will be halved If the diameter of a circle is doubled, then its radius is also doubled. Eg: If diameter of a circle is 6 cm, then radius =62=3 cm If the diameter is doubled, i.e., diameter =2×6=12 cm, then radius is 122=6 cm Hence, the radius is also doubled. So if the radius is halved, diameter is also halved.

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