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 Area - 1 - Circle 2 - Semi-Circle 3 - RegularHexagon 4 - Square 5 - Rectangle 6 - Parallelogram 7 - Rhombus 8 - Trapezium 9 - Scalene Triangle 10 - Rightangle Triangle 11 - Equilateral Triangle 12 - Isoceles Triangle 13 - SectorSegment Area >> Circle Area 1 of 13 I know that for a circle RadiusDiameterCircumferencePerimeterArea = . From this find out RadiusDiameterCircumferencePerimeterArea of the circle. pi =  22/7 3.14159

SolutionCircle FormulaArea Formula
 Area of Circle Area (A) = pi r^2Circumference (C) = 2 pi r = pi dDiameter (d) = 2 rExample : I know that for a circle Radius = 10 . From this find out Area of the circle."Here radius " (r)=10 "(Given)""Diameter " (d)= 2 * r = 2 * 10 = 20"Perimeter" = 2 pi r = 2 * 22/7 * 10 = 440/7Area = pi r^2 = 22/7 * (10)^2 = 2200/7