Formulas To Calculate Area Math

It s the size of a 2 dimensional surface and is measured in square units for example square feet.

Formulas to calculate area math. Rectangle area w h w width h height. Circle area π r 2 circumference 2 π r r radius. If a square has one side of 4 inches the area would be 4 inches times 4 inches or 16 square inches. Area of a rectangle a l b.

Where l length. How to calculate area. Lengths of the 3 sides area. Surface area 2 area of top perimeter of top height.

Area of square a 2 where a is the side of the square. Square area a 2 a length of side. Area of a square. Surface area add the area of the base to the sum of the areas of all of the triangular faces.

For example if you want to know the area of a square box with side 40 cm you will use the formula. Trapezoid us trapezium uk area a b h h vertical height. H is the height of the cylinder r is the radius of the top surface area areas of top and bottom area of the side. R is radius of circle surface area of a cylinder 2 pi r 2 2 pi r h.

Where a length of the sides of a square. Area of a triangle a b h. Square inches can also be written in 2. Geometry lessons worksheets and solutions on how to find the area of polygons square rectangle parallelogram triangle equilateral triangle rhombus kite trapezoid how to find the area of any regular polygon examples with step by step solutions how to use the formula to find the area of any regular polygon.

Surface area of a sphere 4 pi r 2. Similarly the area of a triangle can also be found using its area formula 1 2 b h. It s essential to measure all lengths in the same unit of measure or convert all. Use our formulas to find the area of many shapes.

H height of the triangle. Parallelogram area b h b base h vertical height. Ellipse area π ab. Length of one side area of a rectangle.

Width perimeter of a triangle. Width area of a triangle. S s s. S s s s s length of one side perimeter of a rectangle.

Cones volume 1 3 area of the base x height v r2h. L w l w l. A b c a b and c. Perimeter of a rectangle p 2 l b where l length.

Area b h b base h vertical height. Square feet can also be expressed as ft 2 or sq. Since each side of a square is the same it can simply be the length of one side squared. Where b base of the triangle.

Area is the space inside the perimeter boundary of space and its symbol is a. Area of a square a a 2. Area of a square side times side. Sector area r 2 θ.

Perimeter of a square. The areas of the triangular faces will have different formulas for different shaped bases.