Question

The area of a circle is approximated to be $314uni{t}^2$. What is the measure of its diameter? (take $\pi =3.14$)

• A. $10$ $units$
• B. $15$ $units$
• C. $20$ $units$
• D. $25$ $units$

Answer 1

The correct option is C $20$ $units$

$area=\pi \times r^2$
$314=3.14\times r^2$
$r^2=100$
$r=10$ $units$
Therefore,
$d=20units$