Question

The circumference of the Chakra of National flag exceeds its diameter by $16.8cm$. Find the radius of the chakra.

Answer 1

The circumference of circle is $\pi d.$
Now,

$\pi d-d=16.8$
substituting value of $\pi =3.14$, we get
$3.14d-d=16.8$
$2.14d=16.8$
So, $d=\frac{16.8}{2.14}=7.85$
Now, $radius=2r=7.85=3.925units.$