Question

The circumference of a circle is 125.6cm. Find the radius and diameter.
$(\pi = 3.14)$
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Answer 1

Answer:

The radius and diameter of the circle is 20 cm and 40 cm respectively.

Step-by-step explanation:

Given, the circumference of a circle is 125.6 cm

and pi is 3.14

Solution, Circumference of a circle = 2× pi× r

125.6 = 2(3.14)r

125.6/2(3.14) = r

r = 20 cm

Now, diameter = 2r

= 2(20)

= 40 cm

Answer 2

Answer:

Radius of circle = 20 cm

Diameter of circle = 40 cm

Step-by-step explanation:

Given data

The circumference of a circle is 125.6 cm  and $\pi$ value is given 3.14  

here we need to find radius and diameter of the circle

⇒ we know that circumference of a circle with radius r is 2$\pi$r  

⇒ 2 $\pi$ r = 125.6

⇒ 2 (3.14) r = 125.6   [ from given data ]

⇒ radius (r) = 125.6/ 6.28

                   = 20 cm

⇒ diameter of the circle d = 2r = 2 (20) = 40 cm