- Adjacent angles-are angles that are side by side and share a common vertex and side.
- Vertical angles- are angles are formed by two intersecting lines and a re not adjecent.
- Vertical angles have the same measure so they are always congruent
- Complementary angles- are two angles whose measure have a sum of 90 degrees
- Supplementary angles- are two angles whose measure have a sum of 180 degrees
- Finding Angle Measures- To find an unknown angle measure, first look at the two angles and decide if the angles are complementary or supplementary
Adjacent angles-are two angles that are side by side and have a common vertex and ray. Adjacent angels may or may not be congruent.
Vertical angles-are two angles that are formed by two intersecting lines and are not adjacent. Vertical angles have the same measure, so they are always congruent.
Complementary angles-are two angles whose measure have a sum of 90o
Supplementary angles- are two angles whose measure have a sum of 180o
Think and Discuss
1.Tell whether the angles in Example 1B are supplementary, complementary, or neither
My Answer:Supplementary
2.List three different terms that may apply to a pair of angles, and explain what these terms mean.
My Answer:Linear angles are two angles that are adjacent and supplementary.
3.Discuss whether two angles can be both vertical and adjacent.
My Answer:No they are not. the deffinition of vertical angle is a pair of non adjacent angles form by the intersection of two straight lines
Today I have learned about Adjacent, Vertical, Complementary, Supplementary angles.Adjacent angles are two angles that are side by side and have a common vertex and ray. Adjacent angels may or may not be congruent.Vertical angles are two angles that are formed by two intersecting lines and are not adjacent. Vertical angles have the same measure, so they are always congruent.Complementary angles are two angles whose measure have a sum of 90. Supplementary angles are two angles whose measure have a sum of 180. That what I learned today from watching the videos.