Question

if radius of a circle 10.5 cm then find area of circle​

Answer 1

Answer:

Area of circle = πr^2

10.5 = radius

area = 3.14*10.5*10.5

= 3.14*110.25

= 396.5 square cm

Answer 2

Answer:

Hence, area of the circle having radius 10.5 cm will be 346.5 sq. cm

Step-by-step explanation:

In context to question asked,

We have to determine the area of the circle.

As per question,

We have,

Radius of circle = 10.5 cm

As we know that,

Radius of circle is the straight line which are drawn from the centre of circle to the circumference of the circle.

As we know that,

Area of circle $=\Pi r^2$

So, for determining the area of circle, we will put the value of radius of circle in above formula,

Thus we will get,

$Area = \Pi r^2\\=>Area = \frac{22}{7} \times 10.5 \times 10.5\\=>22 \times 10.5 \times 1.5\\=>346.5\:cm^2$