Question

Question 45

Fill in the blanks to make the statement true.

Ratio of the circumference of a circle to its diameter is denoted by symbol ___.

Answer 1

$\because$ Circumference (C) $=2\pi r$
$\Rightarrow C=\pi d$ $[\because d=2r]$
$\Rightarrow \frac{C}{d}=\pi =C:d$
Hence, $\pi$ is the answer.