Question

5. The radius of a circular plate is 21cm. Calculate its area (Take pi= 22/7)​

Answer 1

$\huge{\underline{\mathfrak{Answer:-}}}$

A≈1385.44cm²

Answer 2

It is given that,

Radius of a circle = 21 cm.

We know that π=22/7,

So the circumference of a circle = 2πr

Substituting the values,

=2∗22/7∗21

So we get,

=2∗22∗3

=132 cm.