#### What are same side interior angles

## What are same side interior angles equal to?

Same – side interior angles are formed from two parallel lines crossed by a transversal. Same – side interior angles add up to 180 degrees. To prove two lines are parallel, add up the same – side interior angles , or vice-versa.

## What are the alternate interior angles?

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.

## Do corresponding angles have to be on the same side?

A pair of corresponding angles lie on the same side of the transversal. Corresponding pair of angles comprises of one exterior angle and another interior angle . Not all corresponding angles are equal. Corresponding angles are equal if the transversal intersects two parallel lines.

## What are interior angles on the same side of the transversal called?

When the lines are parallel, the interior angles on the same side of the transversal are supplementary. If two parallel lines are cut by a transversal , the interior angles on the same side of the transversal are supplementary.

## Are opposite interior angles congruent?

Angles that are on the opposite sides of the transversal are called alternate angles e.g. 1 + 8. All angles that are either exterior angles , interior angles , alternate angles or corresponding angles are all congruent .

## What are alternate angles simple definition?

: 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 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 .

## What do consecutive interior angles look like?

When two lines are crossed by another line (called the Transversal): The pairs of angles on one side of the transversal but inside the two lines are called Consecutive Interior Angles . In this example, these are Consecutive Interior Angles : d and f.

## 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 .

## What are the names of angles on parallel lines?

Angles that are in the area between the parallel lines like angle H and C above are called interior angles whereas the angles that are on the outside of the two parallel lines like D and G are called exterior angles . Angles that are on the opposite sides of the transversal are called alternate angles e.g. H and B.

## How do you describe corresponding angles?

When two lines are crossed by another line (which is called the Transversal), the angles in matching corners are called corresponding angles . Example: a and e are corresponding angles . When the two lines are parallel Corresponding Angles are equal.

## What happens if a transversal intersects two parallel lines?

If a transversal intersects two parallel lines , then alternate interior angles are congruent. If a transversal intersects two parallel lines , then same-side interior angles are supplementary. If two lines and a transversal form corresponding angles that are congruent, then the two lines are parallel .

## What are two parallel lines cut by a transversal?

If two parallel lines are cut by a transversal , then the pairs of corresponding angles are congruent. If two parallel lines are cut by a transversal , then the pairs of alternate interior angles are congruent. If two parallel lines are cut by a transversal , then the pairs of alternate exterior angles are congruent.