## What is an alternate angle?

: one of a pair of angles with different vertices and on opposite sides of a transversal at its intersection with two other lines: a : one of a pair of angles inside the two intersected lines. — called also alternate interior angle .

## What is alternate angle with example?

Alternate angles are angles that are in opposite positions relative to a transversal intersecting two lines. If the alternate angles are between the two lines intersected by the transversal, they are called alternate interior angles .

## What is alternate interior and exterior angles?

Angles that are in the area between the parallel lines like angle 2 and 8 above are called interior angles whereas the angles that are on the outside of the two parallel lines like 1 and 6 are called exterior angles . Angles that are on the opposite sides of the transversal are called alternate angles e.g. 1 + 8.

## How do you write an alternate interior angle?

Alternate Interior Angles Alternate Interior Angles are two angles that are on the interior of begin{align*}lend{align*} and begin{align*}mend{align*}, but on opposite sides of the transversal. Alternate Interior Angles Theorem: If two parallel lines are cut by a transversal, then the alternate interior angles are congruent.

## What are the 7 types of angles?

Types of Angles – Acute, Right, Obtuse , Straight and Reflex Acute angle. Right angle. Obtuse angle. Straight angle. Reflex angle.

## What do alternate interior angles look like?

Alternate Interior Angles are a pair of angles on the inner side of each of those two lines but on opposite sides of the transversal. In this example, these are two pairs of Alternate Interior Angles : c and f.

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## Is alternate interior angles are equal?

Alternate interior angles are equal if the lines intersected by the transversal are parallel. Alternate interior angles formed when a transversal crosses two non-parallel lines have no geometrical relation. Therefore, the pairs of alternating interior angles are: ∠a & ∠ d.

## Is same side interior angles congruent?

Same side interior angles are on the same side of the transversal. Same side interior angles are congruent when lines are parallel.

## What are the properties of alternate angles?

What Are The Properties of Alternate Interior Angles? Alternate Interior angles are congruent. The sum of the angles formed on the same side of the transversal which are inside the two parallel lines is equal to 180°. Alternate interior angles don’t have any specific properties, in case of non-parallel lines.

## Why are alternate interior angles always congruent?

Alternate Interior Angle Theorem The Alternate Interior Angles Theorem states that, when two parallel lines are cut by a transversal , the resulting alternate interior angles are congruent .

## What is the difference between alternate interior angles and consecutive interior angles?

If they are on the same side, then the angles are considered consecutive . If they are on opposite sides, then the angles are considered alternate . Are the angles inside or outside of the two intersected lines? If they are inside the two lines, then they will be classified as interior .

## Do alternate interior angles add up to 180?

Alternate angles form a ‘Z’ shape and are sometimes called ‘Z angles ‘. d and f are interior angles . These add up to 180 degrees (e and c are also interior ). Any two angles that add up to 180 degrees are known as supplementary angles .

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