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Heron's formula calculator This calculator calculates the area of a triangle using Heron's formula. This formula gives the area of a triangle from the lengths of all three sides. The formula can be found below the calculator. |

Median of a triangle This online calculator computes the median of a triangle given triangle sides |

Angle bisector of a triangle This online calculator computes the length of angle bisector given the lengths of triangle edges |

Altitude of a triangle This online calculator computes the altitude length of a triangle, given the lengths of sides of a triangle. |

Side length of the regular polygon Calculates the side length of the regular polygon circumscribed or inscribed to a circle. Created by user's request |

Cube Calculator: Volume, Surface Area, and Sphere Radii The calculator is designed to provide various measurements related to a cube based on its side length. It can calculate the volume, surface area, circumscribed sphere radius, inscribed sphere radius, and the radius of the sphere tangent to edges. |

Sphere Calculator Calculate the Volume and Surface Area of a Sphere with our online calculator |

Cone |

Cylinder |

Ellipsoid Calculates ellipsoid and spheroid volume and surface area. |

Area of triangle by coordinates This calculator determines the area of a triangle using its vertex coordinates in the cartesian coordinate system. |

Spherical cap and spherical segment This calculator computes volume and surface area of spherical cap and spherical segment |

Spherical sector Calculates surface area and volume of Spherical sector by radius and height |

Regular Circumcircle Polygon Area Calculator The calculator calculates the area of a regular polygon given the circumradius and number of sides and displays it along with the area of the circumcircle. |

Trigonometric functions This online calculator computes the values of elementary trigonometric functions, such as sin, cos, tg, ctg, sec, cosec for an angle, which can be set in degrees, radians, or grads. |

Inverse trigonometric functions This calculator determines values of inverse trigonometric functions (arcsine, arccosine, arctangent, arccotangent, arcsecant, arccosecant) and outputs it with different measurement units (degrees, radians, minutes, etc) |

Circle formulas Circle formulas |

Triangle Angle Calculator The Triangle Angle Calculator is a tool that calculates the angles of a triangle given the length of its sides. |

Sine wave calculator Construction of a sine wave with the user's parameters |

Area of a convex quadrilateral. Example of creating a calculator. This online calculator calculates area of a convex quadrilateral given diagonal values and value of angle between them. Article also describes the process of creating a calculator. |