1.6-1.7 Angles and Their Measures. Geometry. Objectives : Use angle postulates Classify angles as acute, right, obtuse, or straight. Using Angle Postulates.
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There are three different angles.
You should not name any of these angles as Q because all three angles have Q as their vertex. The name Q would not distinguish one angle from the others.
MEASURES ARE EQUAL
mBAC = mDEF
ANGLES ARE CONGRUENT
“is congruent to”
“is equal to”
Note that there is an m in front when you say equal to; whereas the congruency symbol ; you would say congruent to. (no m’s in front of the angle symbols).
mRSP + mPST = mRST
m5 = 50˚.