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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 >> Equilateral Triangle Area 11 of 13 I know that for a equilateral triangles SidePerimeterArea = . From this find out SidePerimeterArea of the equilateral triangles.

SolutionEquilateral Triangle FormulaArea Formula
 Area of Equilateral Triangle Perimeter (P) = 3 aArea (A) = sqrt(3)/4 a^2Example : I know that for a equilateral triangles Side = 6 . From this find out Area of the equilateral triangles."Here " a = 6" (Given)""We know that,""Perimeter" = 3 * a = 3 * 6 = 18"We know that,""Area" = sqrt(3)/4 * a^2 = 1.732/4 * 6 * 6 = 15.5885