Math, asked by MohdTahir4102, 1 year ago

If the radius of a circle is halved, its circumference decreases by ( A ) 1/3 ( B ) 1/2 ( C ) none of these ( D ) 1/4

Answers

Answered by rana1123

0

Answer:

1/2

Step-by-step explanation:

radius = r

circumference= 2πr

new radius = R = r/2

new circumference= 2πR

=2πr/2

=old circumference/2

hence new circumference is half

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