# What is supplementary and complementary?

Space and Astronomy**Two angles are called complementary when their measures add to 90 degrees.** **Two angles are called supplementary when their measures add up to 180 degrees**.

## What is supplementary and example?

**If sum of two angles is 180°, they are supplementary**. For example. 60° + 120° = 180° Since, sum of both angles is 180° So, they are supplementary.

## How do you identify complementary and supplementary?

If the sum of two angles is 180 degrees then they are said to be supplementary angles, which forms a linear angle together. Whereas if the sum of two angles is 90 degrees, then they are said to be complementary angles, and they form a right angle together.

## What are are complementary?

The adjective “complementary” (with an “e” in the second syllable) means **serving to complete or supply mutual needs**. Two or more parts that come together to make a better whole are called complementary. Complementary acute angles, when added together, make a right or 90-degree angle.

## What is the difference between complementary supplementary and congruent?

And here are the two theorems about supplementary angles that work exactly the same way as the two complementary angle theorems: ***Supplements of the same angle are congruent**. If two angles are each supplementary to a third angle, then they’re congruent to each other.

## What is supplementary Theorem?

Theorems Involving Supplementary Angles

Congruent supplements theorem – This theorem states that **if two angles, A and C, are both supplementary to the same angle, angle B, then angle A and angle C are congruent**. That is, angle A and angle C have the same measure.

## How do you name a complementary angle?

**Two angles whose sum is 90° (that is, one right angle) are called complementary angles and one is called the complement of the other**. Here, ∠AOB and ∠BOC are called complementary angles. ∠AOB is complement of ∠BOC and ∠BOC is complement of ∠AOB. Thus, the complementary angle of 60° is the angle measure 30°.

## Which pair is supplementary?

Supplementary angles are two angles whose measures add up to 180° . The two angles of a linear pair , like **∠1 and ∠2** in the figure below, are always supplementary. But, two angles need not be adjacent to be supplementary. In the next figure, ∠3 and ∠4 are supplementary, because their measures add to 180° .

## How do you draw supplementary angles?

Video quote: *So appears I have a line right have a line or two opposite race if I break this line up. And I create another third opposite ray I create now two angles.*

## Which pair of angles is supplementary?

Supplementary angles are those **angles that sum up to 180 degrees**. For example, angle 130° and angle 50° are supplementary angles because sum of 130° and 50° is equal to 180°. Similarly, complementary angles add up to 90 degrees.

## Which is m ABC?

A triangle is a closed figure formed by three line segments, consisting of interior as well as exterior angles. The angle sum property is used to find the measure of an unknown interior angle when the values of the other two angles are known. Therefore, the m∠ABC is **60°**.

## What is the complement of 25?

The complementary of angle 25° is **65°**.

## What is linear pair?

Linear pair of angles are **formed when two lines intersect each other at a single point**. The angles are said to be linear if they are adjacent to each other after the intersection of the two lines. The sum of angles of a linear pair is always equal to 180°.

## What is reflex angle?

A reflex angle is **any angle that is more than 180 degrees (half circle) and less than 360 degrees (full circle)**. A reflex angle will always have either an obtuse or an acute angle on the other side of it.

## Which is adjacent angle?

**two angles having the same vertex and having a common side between them**.

## What is in the scalene triangle?

A scalene triangle is a triangle that has **three unequal sides**, such as those illustrated above.

## What is a obtuse equilateral?

The angles in an equilateral triangle are all 60 degrees. 1803=60. since all three angles are equal divide the total degrees in an triangle by 180 by 3. An obtuse angle is **greater than 90 degrees**. 60< 90 so an equilateral triangle can not have an obtuse angle.

## What is a right equilateral?

Video quote: *A triangle with one right angle is called a right triangle.*

## What does isosceles mean in math?

mathematics. : **a triangle in which two sides have the same length**.

## What are the 3 types of triangle?

There are three types of triangle based on the length of the sides: **equilateral, isosceles, and scalene**.

## How many degrees is a triangle?

180°

Angles in a triangle sum to **180°** proof.

## Why triangle is 180?

The angles of triangle always add up to 1800 degrees because **one exterior angle of the triangle is equal to the sum of the other two angles in the triangle**. When all the angles are added up, the sum obtained should be 180 degrees.

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