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Quadrilaterals, Triangles, Angle Pairs

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toziwila's version from 2015-10-21 19:44

Section 1

Question Answer
Rectanglea four-sided shape where every angle is a right angle also opposite sides are parallel and of equal length.
Rhombusa four-sided shape where all sides have equal length also opposite sides are parallel and opposite angles are equal.
Squarea four-sided shape where all sides have equal length also opposite sides are parallel and all angles are right angles
Parallelogramopposite sides parallel and equal in length also opposite angles are equal.
Trapezoidhas a pair of opposite sides parallel.
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Section 2

Question Answer
IsoscelesAt least two sides equal
EquilateralAll sides equal
ScaleneNo sides equal
Right TriangleOne angle 90°
ObtuseOne angle greater than 90°
AcuteAll angles less than 90°
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Section 3

Question Answer
Supplementary AnglesTwo Angles that add up to 180 degrees.
Complementary AngleTwo Angles that add up to 90 degrees.
Adjacent AnglesTwo angles that have common side and a common vertex
Vertical AnglesTwo angles opposite each other when two lines cross
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