Area and Perimeter Formula are the two major formulas for any given two-dimensional shape in. The exact area of many common shapes can be calculated using well-defined formulas. Perimeter a b c.
Area of a square.
Where a Length of the sides of a Square. Perimeter a b c To find out the triangles area you will need only the length of the base b and the height h which is measured from the base to the peak of the triangle. In Example 2 the second solution is more commonly used. Perimeter add lengths of all sides a b1 b2 c Circle Radius the distance from the center to a point on the circle r.