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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 >> Semi-Circle Area 2 of 13 I know that for a Semi-Circle RadiusDiameterCircumferencePerimeterArea = . From this find out RadiusDiameterCircumferencePerimeterArea of the Semi-Circle. pi =  22/7 3.14159

SolutionSemi-Circle FormulaArea Formula
 Area of Semi-Circle Area (A) = 1/2 pi r^2Circumference (C) = pi r = (pi d)/2Perimeter (P) = pi r + 2 rDiameter (d) = 2 rExample : I know that for a Semi-Circle Radius = 10 . From this find out Area of the Semi-Circle."Here radius "(r)=10" (Given)""Diameter "(d)= 2 r = 2 * 10 = 20"Circumference" = pi r = 22/7 * 10 = 220/7"Perimeter" = pi r + 2 r = 22/7 * 10 + 2 * 10 = 220/7 + 20 = 360/7"Area" = (pi r^2)/2 = (22/7 * (10)^2)/2 = 1100/7