where: A is the area and x is the side of the square
where: x and y are the adjacent sides of the rectangle
where: r is the radius of the circle and Π = 3.14
There are three formulas:
where: b is the base of the triangle and h is the height which the perpendicular distance from the vertex to the base
where: a and b are two sides and C is the angle opposite to the third side c.
Where a, b and c are the three sides of the triangle
and
or half the perimeter
where: x and y are the two parallel sides and h is the perpendicular distance between the parallel sides
where: b is the base and h is the perpendicular distance of the opposite side from the base
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