Area of a Square
geometry
Finds the area of a square from its side length.
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Perimeter of a Square
geometry
Finds the boundary length of a square.
Area of a Rectangle
geometry
Finds rectangle area from length and width.
Perimeter of a Rectangle
geometry
Finds the boundary length of a rectangle.
Area of a Triangle
geometry
Finds triangle area from a base and its perpendicular height.
Perimeter of a Triangle
geometry
Adds the three side lengths of a triangle.
Pythagorean Theorem
geometry
Relates the legs and hypotenuse of a right triangle.
Heron's Formula
geometry
Finds a triangle area from all three side lengths.
Triangle Semiperimeter
geometry
Finds half a triangle perimeter.
Area of a Parallelogram
geometry
Finds parallelogram area from base and perpendicular height.
Area of a Trapezoid
geometry
Finds trapezoid area from parallel bases and height.
Area of a Rhombus
geometry
Finds rhombus area from diagonal lengths.
Area of a Kite
geometry
Finds kite area from perpendicular diagonals.
Area of a Regular Polygon
geometry
Finds regular-polygon area from apothem and perimeter.
Regular Polygon Interior Angle
geometry
Finds one interior angle of a regular n-sided polygon.
Polygon Interior Angle Sum
geometry
Finds the sum of interior angles of an n-sided polygon.
Area of a Circle
geometry
Finds a circle area from its radius.
Circumference of a Circle
geometry
Finds the boundary length of a circle.
Circle Diameter
geometry
Relates a circle diameter to its radius.
Area of a Semicircle
geometry
Finds the area inside half a circle.
Area of a Sector
geometry
Finds a sector area when the central angle is in degrees.
Arc Length
geometry
Finds a circular arc length when the central angle is in degrees.
Area of an Ellipse
geometry
Finds ellipse area from its semimajor and semiminor axes.
Volume of a Cube
geometry
Finds cube volume from side length.
Surface Area of a Cube
geometry
Finds total surface area of a cube.