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pi r squared Area of the circle = pi (radius)2 square units.

If we are supposed to find the area between two concentric circles then, let us see the definition first.

Concentric circles have a common center and different radii.

Area of the large circle – Area of the small circle = Area of the region between the circles.

It is called as the annulus part Source: www.icoachmath.com

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Q: How do you find the area common to circles?
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What is the meaning of concentric circles?

They are circles that have a common centre


How do you find the curved surface area of a cylinder?

1. Find the surface area of the whole cylinder 2. Find the area of one of the two circles on either end of the cylinder 3. Multiply the circle's area by two and subtract their area from the total surface area 4. Now you have the surface area of an unclosed cylinder!


Do concentric circles have the same area?

Concentric circles have the same center. They are not necessarily the same size. If two concentric circles have the same area, then they are congruent, meaning they coincide when superimposed.


An irregular shape that can be split into familiar shapes such as rectangles triangles and circles in order to find the area.?

That is correct and a kite is one such example.


How do you find the area of each cylinder to the nearest whole number?

The Area of a rectangle is LxW . The area of a circle is PI x RxR where R is the radius of the circle. The Circumference or distance around a circle is 2xPIxR. To find the surface area of a cylinder with radius R (the radius of the circles at the top and bottom) and Length L(how tall the cylinder is) you first find the area of the circles on the bottom and top - then add it to the area of the tube part. If you unwrap the tube, it becomes a rectangle with the width 2xPIxR (since it was wrapped around the circles on top and bottom), and the Length L( how tall it is) . So it will be 2 circles plus the rectangle. 2 (PIxRxR) + 2xPIxRxL. Then round it to the nearest whole number. If the number on the right side of the decimal point is 5 or more, round up to the next whole number otherwise leave it the same. Then drop the numbers on the right side of the decimal point.