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10 Terms
1
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segment bisector/midpoint
divides a segment into 2 ≅ segments
2
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angle bisector
divides an angle into 2 ≅ angles
3
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vertical angles/right angles
angles are ≅
4
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complementary angles
2 or more angles whose sum is 90°
5
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supplementary angles
2 or more angles whose sum is 180°
6
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isosceles triangle
a triangle with 2 ≅ legs and base angles
7
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perpendicular lines
form ≅ right angles
8
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parallel lines
lines cut by a transversal form ≅ alternate interior/corresponding angles
9
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median
divides a segment into 2 ≅ segments(meets at the
midpoint)
midpoint)
10
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altitude
is perpendicular to the base
Note 
Flashcards (35)