Free math problems and answer
Free math problems and answer
To find the solutions of various maths problems, visit my blog blog.freematheducaiton.com or website www.freematheducation.com.
Area of Geometric Figures
Area of a Rectilinear Figures
Area of a Triangle: If the height of a triangle is ‘h’ and the base is ‘b’, then the area of a triangle is given by base x height = bh
Area of a Equilateral Triangle: 1/4 times square root of 3 times side squared i.e. 1/4 times root 3a2
Area of a Triangle by Heron’s formula: If the sides of a triangle is a,b and c, then the area of a triangle is square root (s(s-a)(s-b)(s-c), where 2s = a + b + c i.e the sum of the sides of a triangle is equal to 2S
Area of a Rectangle: If the sides or length and width of a rectange is ‘l’ and ‘w’, then the area of a rectangle is given by length x width = lw
Area of a Square: If the side of a square is ‘a’, then the area of a square is given by side x side = a2
Area of a Parallelogram: If the side of a parallelogram is ‘b’ and height is ‘h’, then the area of a parallelogram is given by b x h = bh
Area of a Trapezoid: If the sides of a trapezoid is b1 and b2 and its height is ‘h’, then the area of a trapezoid is given by
Area of a trapezoid is given by 1/2 times (sum of the sides) times height = 1/2 (b1 + b2) x h
Area of a Circle: If the radius of a circle is ‘r’, then the area of a circle is given by
Area of a circle = pi times r2 = pi r2
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