Supplementary angles are a pair of angles that add up to 180 degrees. Learn the definition, properties, types, facts, examples, and more.

Supplementary Angles - Definition | What are Supplementary Angles? Supplementary angles refer to the pair of angles that always sum up to 180°. The word 'supplementary' means …

When two angles add up to 180° we call them supplementary angles. These two angles (140° and 40°) are Supplementary Angles, because they add up...

What are supplementary angles? Answer: Supplementary angles are angles whose sum is 180 ° No matter how large or small angles 1 and 2 on the left become, the two angles remain …

Jul 23, 2025 · Supplementary angles are nothing but when the sum of two angles is equal to the straight line angle or 180 degrees. Supplementary angles are frequently encountered in …

May 15, 2024 · Two complementary angles add up to 90 degrees (a right angle), while larger combinations called supplementary angles add up to 180 degrees (a straight line). The …

A supplementary angle is defined as one of a pair of two angles whose measures add up to exactly 180 degrees. You’ll find this concept applied in areas such as straight lines, polygon …

Students will first learn about supplementary angles as a part of measurement and data in 4th grade. They will expand that knowledge as they progress through middle school. What are …

Definition and properties of supplementary angles - two angles that add to 180 degrees

Supplementary angles are two angles whose measures add up to exactly 180 degrees. When placed adjacent to each other (sharing a common vertex and side), they form a straight line.