Question

the circumference of circle exceeds the diameter by 16.8 cm.find the radius of the circle ?

Answer 1

HEYA USER!

IT IS GIVEN THAT THE CIRCUMFERENCE OF THE CIRCLE EXCEEDS THE DIAMETER BY 16.8 cm

$\pi \: d= d \: + 16$
Pi d - d =16

D(pi-1)=16
D=16/pi-1

R=16/PI-1/2

R=2.54cm

Answer 2

let the radius of the circle be r cm .

given, circumference of the circle.

= diameter of circle + 16.8

2πr = 2r + 16.8

$2 \times \frac{22}{7} \times r = 2r + 16.8$

44r = 14r + 16.8 ×7

30r = 117.6

$r = \frac{117.6}{30} = 3.92m$

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