Question

If the circumferene of a circle exceeds its diameter by 16.8cm, find the diameter of the circle
guyzz pls help

Answer 1

circumference of circle = 16.8 + diameter
2*22/7*r = 16.8 + 2r
44r = 7(16.8+2r)
44 r = 117.6 + 14r
30 r = 117.6
hence r = 3.92 or 4 approx
therefore diameter =2r = 8 cm... mark it brainliest.. if it helped u

Answer 2

Given that the circumference of a circle exceeds its diameter by 16.8cm.

Circumference = Diameter + 16.8

$2 \pi r = 2r + 16.8$

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

$44r = 7(2r + 16.8)$

44r = 14r + 117.6

$30r = 117.6$

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

$r = 3.92$


Therefore the diameter of the circle = 2 * r

                                                             = 2 * 3.92

                                                             = 7.84cm.


Hope this helps!