The area of the circle in terms of pi = 100π cm²
The area of the circle is 314 cm².
Step-by-step explanation:
Given that,
The diameter of the circle = 20 cm.
We need to find out the value of radius of the circle in order to find the area of the circle.
To find the radius of the circle :
Radius, r = diameter / 2
⇒ r = 20/2
⇒ r = 10 cm.
Therefore, the radius of the circle is 10 cm.
To find the area of the circle :
Area of the circle = πr²
where,
- π has the default value of 3.14
- r is the radius of the circle.
Area of the circle in terms of Pi :
⇒ π × (10)²
⇒ π × 10 × 10
⇒ 100π
The area of the circle in terms of pi = 100π cm²
Area of the circle = 3.14 × 100
⇒ 314 cm²
The area of the circle is 314 cm².
