Category: Flat figures

Height of an equilateral triangle
An equilateral triangle is a triangle in which all sides are equal. Also, the heights drawn from any vertex are also equal. All angles are…

Height of an isosceles triangle
The formula for the height of an isosceles triangle can be obtained from the Pythagorean theorem, as well as from the Heron formula. An isosceles…

Height of the triangle
To find the height of a triangle, let’s use one of the properties of a triangle: the height drawn in any triangle divides it into…

Side of the square
A square is a regular quadrilateral, that is, a quadrilateral in which all angles are equal and all sides are equal. A square is both…

Edge of the cube
A cube is a regular polyhedron, each face of which is a square. A special case of a parallelepiped and a prism. The cube has…

The lateral edge of the parallelepiped
A parallelepiped is a prism whose bases are parallelograms. In other words, a parallelepiped is a polyhedron with six faces. Each face is a parallelogram.…

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…

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…