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area of a circle formulas. The diameter of a circle calculator uses the following equation. Area of a Circle Area of a circle is the region occupied by the circle in a two-dimensional plane.
Determining Areas And Perimeters Of Polygons Area And Perimeter Geometry Lessons Algebra Help from www.pinterest.com
A p 3 2 9 p 283 ft 2 As you can see it is important to pay attention to whether or not you are given the radius or the diameter of the circle. Area of a circle p d2 2. The area of a circle is found with the formula A 314r2 where 314 represents 314.
Radius r 3.
The area of the circle can be found out when the radius or diameter of the circle is given. If you know the radius of the circle and the height of the segment you can find the segment area from the formula below. Example Questions Based on Segment Formula. Here r refers to the radius of the circle and the unit of the area is in the square unit like cm2 m2 etc.
