What is meant by outer angle?

What is meant by outer angle?

1 : the angle between a side of a polygon and an extended adjacent side. 2 : an angle formed by a transversal as it cuts one of two lines and situated on the outside of the line.

How do you represent an exterior angle?

The exterior angle theorem states that the measure of an exterior angle is equal to the sum of the measures of the two opposite(remote) interior angles of the triangle. Let us recall a few common properties about the angles of a triangle: A triangle has 3 internal angles which always sum up to 180 degrees.

What does interior mean in angles?

1 : the inner of the two angles formed where two sides of a polygon come together. 2 : any of the four angles formed in the area between a pair of parallel lines when a third line cuts them.

What is opposite angle?

Opposite angles are non-adjacent angles formed by two intersecting lines. Opposite angles are congruent (equal in measure).

What is the sum of outer angle?

An exterior angle of a polygon is the angle between a side and its adjacent extended side. This can be understood clearly by observing the exteriors angles in the below triangle. The sum of exterior angles formula says the sum of all exterior angles in any polygon is 360°.

Which is the best definition for exterior of an angle?

Exterior-angle meaning The angle formed between a side of a polygon and an extended adjacent side. 1. (geometry) An angle formed between one side of a polygon and an extension of an adjacent side.

What is the example of interior angles?

Mathwords: Interior Angle. An angle on the interior of a plane figure. Examples: The angles labeled 1, 2, 3, 4, and 5 in the pentagon below are all interior angles. Angles 3, 4, 5, and 6 in the second example below are all interior angles as well (parallel lines cut by a transversal).

What is the opposite of 80?

Answer: The vertically opposite angle of 80° will be 80° only.

What is the measure of a angle?

In geometry, an angle measure can be defined as the measure of the angle formed by the two rays or arms at a common vertex. Angles are measured in degrees ( °), using a protractor. The protractor was invented by Joseph Huddart in 1801. It was a more complex form of protractor.