Question

Find the diameter of a wheel whose circumference is 252

Answer 1

Given :

⬤ Circumference of Wheel is 252 .

To Find :

⬤ Diameter of Wheel .

Formula Used :

As Wheel is in the Shape of Circle . Hence ,

$\bf[\:{Circumference\:of\:Circl=2\pi{r}}\:]$

• r = radius

Solution :

First , We have to Calculate Radius of the Circle . Hence ,

According to the Formula :-

252 = 2πr

252 = 2 × 22/7 × r

(252 × 7) = (44 × r)

1764 = 44r

1764/44 = r

40 = r

Therefore , The Radius of Circle is 40 cm .

Formula Used :

$\bf[\:{Diamater = 2 × R}\:]$

• r = radius

Now :

• Radius = 40 cm .

2 × 40

80

Therefore , The Diamater of Circle or Wheel is 80 cm .

Answer 2

$\huge\underline{\bf \orange{AnSweR :}}$

First , We have to Calculate Radius of the Circle .

Hence ,

According to the Formula :-

• 252 = 2πr
• 252 = 2 × 22/7 × r
• (252 × 7) = (44 × r)
• 1764 = 44r
• 1764/44 = r
• 40 = r

Therefore , The Radius of Circle is 40 cm .

Formula Used :

[Diamater=2×R]

r = radius

Now :

Radius = 40 cm .

2 × 40

80

Therefore ,

Ans. The Diamater of Circle or Wheel is 80 cm.