angle and the endpoint is the ______ of the angle. ... Classify each angle as acute, right, obtuse, or straight. ... Example 3: Using the Angle Additi...
1.4 Measuring Angles Vocabulary An ___________ is formed by two rays with the same endpoint. The rays are the ___________ of the angle and the endpoint is the __________ of the angle. You can name an angle by the following ways: ________________________________________________________________________________ Example 1: Naming an Angle
(a) W hat are two other names f or 1?
(b) W hat are two other names f or KM L? Classifying Angles
____________
____________
_____________
________________
Example 2: Measuring & Classifying Angles What are the measures of ∠LKN, ∠JKL, and ∠JKN? Classify each angle as acute, right, obtuse, or straight. Congruent Angles
Angle Addition Postulate If point B is in the interior of ∠ AOC,
Angles that have the same measure are _______________. then
_______________________________
Example 3: Using the Angle Addition Postulate (a)
m∠RQS and m∠T QS? If m∠RQT = 155, what are
(b)
If ∠DEF is a straight angle. What are m∠DEC and m∠CEF ?
