A 45-degree angle looks like the bisection of a right angle. If one constructs a right angle by drawing one axis horizontally and the other axis vertically, a 45-degree angle is halfway between a flat slope and a vertical slope.Continue Reading
One way to create a 45-degree angle is to start with a straight line, then use a compass to create a perpendicular bisection, then finally create a bisection of the first straight line and the perpendicular bisection.
It is also possible to draw a 45-degree angle without a compass by using graph paper. Because a 45-degree angle has a slope of 1, one can create the angle by plotting points (x,y) starting from the origin (0,0) where x and y are the same value. For example, by plotting points (0,0), (1,1), (2,2) and so forth, and then drawing a straight line between these points, the line creates a 45-degree angle upward from the x-axis.Learn more about Geometry
A protractor is an inexpensive math tool used to measure the sharpness of an angle in a geometric shape. Reading a protractor is fairly simple.Full Answer >
The exterior angle theorem states that an angle exterior to a triangle equals the sum of the two angles not adjacent to it. The theorem’s basis derives from the fact that the sum of all the interior angles in a triangle equals 180 degrees.Full Answer >
An angle is formed by the union of two non-collinear rays that have a common endpoint. This endpoint is the vertex of the angle, and the two rays become the sides of this angle. These two rays can form different types of angles.Full Answer >
The common endpoint of the sides of an angle is called a vertex. For example, triangles have three vertices, while squares have four. These common endpoints are often colloquially called corner points, though this may result in confusing them with angles.Full Answer >