4. 1.4 Measure and Classify Angles August 17, 2011
Angle Addition Postulate: If P is in the interior of RST, then the
measure of RST is equal to the sum of measures of RSP and PST
m RST = m RSP + m PST
R
m RST
m RSP
S
m PST P
T
HW pg. 28 #426 even, 3442 even 4
8. 1.4 Measure and Classify Angles August 17, 2011
Extra Credit Point if you do this on
the board. Please raise your hand!
HW pg. 28 #426 even, 3442 even 8