In geometry, a diagonal is a line segment that connects two non-adjacent vertices of a polygon or polyhedron. It is not an edge of the figure and can be thought of as a "sloping line". The word "diagonal" comes from the ancient Greek word "diagonios," which means "from angle to angle". Diagonals can be found in various shapes, including rectangles, triangles, and quadrilaterals. Some key points about diagonals are:
- A diagonal is a straight line segment that joins two non-adjacent vertices of a shape.
- It is not an edge of the figure and can be thought of as a "sloping line".
- The shape of a diagonal is that of a straight line.
- Diagonals can be found in various shapes, including rectangles, triangles, and quadrilaterals.
- In a rectangle, a diagonal divides it into two right-angled triangles.
- The number of diagonals and their properties vary depending on the type of polygon and the number of sides.
