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**Unformatted text preview: **in alineer pair of angles, one of the angles must be obtuse
acute angles . < 90
obtuse angle . 290 , 2 180
cause
obtuse
A scalene triangle has no side of the same length
equilateral triangle ;
isosceles triangle .
If a point is on the bisector of an angle then it is equidistant
from the sides of the angle
bisect : to cut the half
If twolines are cut by a transversal to form a pair of
congruent corresponding angles, then the lines are
parallel
1 - 3 / How many diagnals does a polygon with 32 sides have ? = 464
diameter, Ilb, incenter , I Bisector
Part C
70
68
42
138
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