Mensuration
1.Rectangle
a |
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Rectangle |
Area = a * b
Perimeter = 2( a + b )
2.Square
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Area = a^2
Perimeter = 4a
3.Triangle
Area = 1/2 * b * h
Perimeter = a + b + c
Semi perimeter = (a + b + c) / 2
4.Parallelogram
Area = b * h
Perimeter = 2( a + b )
5.Circle
Diameter = 2r
Area = ℼr^2
Circumference = 2ℼr
C = ℼd
6.Trapezium
Area = 1/2 ( a + b )*h
Perimeter = Sum of all side
7.General Quadrilateral
Area = 1/2 ( h1 + h2 )*d
8.Isosceles Triangle
Area = b/4 √4a^2 - b^2
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