Question

what is formula of area of circle

now you ask any question ​

Answer 1

Here we have to tell the formula of area of a circle.

Area of circle = πr², where r is the radius of the circle

For example: if we have to find the area of circle having radius 7 m

Then, area = ( 22 / 7 ) × 7²

= 22 × 7

= 154 m

Answer 2

Formula of area of circle is πr²  where r is the radius of the circle.

Circle:

• A circle is a shape in a plane such that all points are at equal distance ( called radius) from a fixed point ( called center )

Formula of area of circle

• A = πr²
• A = Area of the circle
• r = Radius of the circle
• π =  mathematical constant (ratio of a circle's circumference to its diameter)
• π is an irrational number
• To Simplify calculations value of pi is used 3.14 or 22/7

Additional Info:

• Diameter of circle is twice the radius of circle.
• Diameter passed through center of the circle
• Circumference of the circle is given by : πd  or 2πr
• Here d is the the diameter of the circle

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