Areas Of Circles

Area of a circle and its formula.

Areas Of Circles. In geometry, the area enclosed by a circle of radius r is πr2. In order to work on the final section of our study of areas, we must first learn about a shape that we have not discussed at all in the past.

Week 6 Shapes Around Us 3 3 Areas Of Circles Openlearn Open University Swmb 2
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Therefore, we need to use another method for determining the area. Area is the surface enclosed in the closed boundaries and these boundaries can be square in shape, rectangular or circular or any other shape. A circle can be defined as, it is the locus of all points equidistant from a central point.

If a circle has a radius of 4, its area is 3.14*4*4=50.24.

The formula to find the area of a circle is. If a circle has a radius of 4, its area is 3.14*4*4=50.24. Given any one variable a, c, r or d of a circle you can calculate the other three unknowns. The area of a circle is the number of square units inside that circle.