 ## Cone area

The first step in determining the surface area of ​​a cone is to measure the radius of the circle, part of the cone. Next, you… ## Regular polygon area

To find the area of ​​a regular hexagon or any regular polygon, we use a formula that says area = half the product of apotema… ## Truncated cone area

A truncated cone is a shape obtained by cutting a cone with a plane parallel to the base and not containing a vertex. The height… ## Regular prism area

A prism is a polyhedron, two faces of which are congruent (equal) polygons lying in parallel planes, and the other faces are parallelograms that have… ## Area of ​​a parallelepiped

A parallelepiped is a three-dimensional shape with six faces bounded by three pairs of parallel planes, so all of its faces are parallelograms. Essentially, it… ## Find the area of ​​a cube

A cube is a simple shape, and it would be reasonable to assume that there is a simple formula for calculating its surface area. All… ## Tetrahedron area

A pyramid on a triangular base is called a tetrahedron. In other words, a tetrahedron is a shape bounded by four triangular faces. Obviously, a… ## The length of the sides of the rectangle

A rectangle is a quadrilateral with all angles equal to 90 degrees. Find the side length of a rectangle by knowing the diagonal and the… ## Equilateral triangle side length

An equilateral, or conformal, triangle is a regular polygon with three sides, the simplest of regular polygons. All sides of a regular triangle are equal… ## Length of base of an isosceles triangle

An isosceles triangle is a triangle in which the two sides are equal in length. Equal sides are called lateral, and the last unequal side…