Question

if radius of circle is 28 CM then find its parameter​

Answer 1

SOLUTION

Given, Radius = 28cm

So,

Perimeter of circle= 2πr

=) 2× 22/7× 28

=) 44× 4

=) 176cm

hope it helps ✔️

Answer 2

Question:-

If radius of circle is 28 cm, Then find it's perimeter.

Solution:-

Given,

Radius of the circle = 28 cm

We know that the formula of perimeter of circle is = 2πr sq.unit

As the value of π is approx. 22/7

$= > Perimeter = (2 \times \frac{22}{7} \times 28) \: cm$

$= > Perimeter =( 2 \times 22 \times 4) {cm}^{2}$

$= > Perimeter = 176 \: cm$

Hence, The perimeter of the circle is 176 cm.

Additional information:-

Circles

$\bullet$ The perimeter of the circle is also known as the circumference.

$\bullet$ The distance between the midpoint and the. border of the circle is called the radius of the circle.

$\bullet$ The distance between the two circle borders is called the diameter of the circle which is 2 × radius.

$\bullet$ The formula of area of a circle is πr² where π equals to 22/7.