What is the area if the radius is 2 cm?

A= 12.57cm2 rounded off to two decimal places.

How do you find the area of a 2cm circle?

Pre-Algebra Examples

1. The area of a circle is equal to Pi π times the radius r squared. π⋅(radius)2.
2. Substitute in the value of the radius r=2 into the formula for the area of a circle. Pi π is approximately equal to 3.14 . π⋅22.
3. Raise 2 to the power of 2 . π⋅4.
4. Move 4 to the left of π . 4π(cm)2.

How do you make a 2 cm radius of a circle?

STEPS OF CONSTRUCTION

1. Draw a circle of radius 2 cm and O as centre.
2. Mark a point P outside the circle such that OP = 6.5 cm.
3. Join OP and bisect it at M.
4. Draw a circle with M as centre and radius equal to MP, to intersect the given circle at the points, T and T’.
5. Join PT and PT’.

What is the circumference of the radius is 2?

To calculate the circumference, you need the radius of the circle: Multiply the radius by 2 to get the diameter. Multiply the result by π, or 3.14 for an estimation. That’s it; you found the circumference of the circle.

How do you draw a radius of a circle with 2.5 cm?

Step-by-step explanation:

1. Construct 2.5 cm radius of circle O with the help of compass.
2. Measure 2.5 cm in scale and create a circle from point O.
3. Use the scale and draw a line 8 cm with help of scale join PO.
4. Now from P to O, We have to make a tangent.
5. Create a perpendicular bisector with the help of compass.

What is the diameter of 2.5 cm?

LNCtips.com: Wound Sizing

What’s the area of the radius is 5?

2 Answers. Area =78.57 sq.in.