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Congruence
Math 2 Unit 2 Final test (lessons 1-10) Study Guide
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Geometry & Trigonometry
Congruence
10th
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30 Terms
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1
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Straight Angle
Two rays extend in exactly two opposite directions and share a common endpoint (the center)
2
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Linear Pair
The two angles created if two angles share a vertex and together make a straight angle
3
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Supplementary angles
The sum of two angles that equal 180 degrees
4
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Complementary angles
Add up to 90 degrees
5
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Altitude
is a line segment drawn from a vertex perpendicular to the opposite side (or an extension of the opposite side).
6
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Median
is a line segment drawn from a vertex to the midpoint of the opposite side.
7
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Angle bisector
is a line segment or ray drawn from vertex that cuts the angle in half.
8
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Perpendicular bisector of a side
is a line drawn perpendicular to a side of the triangle through its midpoint.
9
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SSS
Congruent
10
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SAS
Congruent
11
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ASA
Congruent
12
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AAS
Not Congruent
13
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HL
Congruent
14
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AAA
Not Congruent
15
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SSA
Not Congruent
16
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What is the sum of the angles in a triangle?
180 degrees
17
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Points along the perpendicular bisector are equidistant from the
endpoints of the segment. (Type Ok)
Ok
18
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quaderlateral
4 sided polygon
19
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Square (Type Ok)
Ok
20
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Rhombus (Type Ok)
Ok
21
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Parallelogram (Type Ok)
Ok
22
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Isosceles Trapezoid (Type Ok)
Ok
23
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Trapezoid
No sides are congruent
24
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Equilateral Triangle
All sides are congruent
25
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Isosceles triangle
2 sides are congruent
26
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Scalene triangle
No sides are congruent
27
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Vertical Angles
the opposite angles formed at the point of intersection.
28
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Exterior Angles of a Triangle
the angle formed on the exterior of the triangle is called an exterior angle.
29
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Remote interior angles
the two angles of the triangle that are not adjacent to the exterior angle
30
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Transversal line
a line that intersects two or more other lines.