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Science Stuff > Chapter 9- Geometry > Flashcards

Chapter 9- Geometry Flashcards

0
Q

Acute triangle

A

A triangle that has three acute angles.

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1
Q

Acute Angle

A

An angle with a measure greater than 0° and less than 90°.

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2
Q

Angle

A

Two rays with a common endpoint form an angle.

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3
Q

Complementary Angles

A

Two angles are complimentary if the sum of their measures is 90°.

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4
Q

Congruent angles

A

Angles with the same measure.

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5
Q

Congruent figures

A

Figures that are the same shape and size.

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6
Q

Congruent segments

A

Line segments that are the same length.

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7
Q

Corresponding sides

A

The parts of congruent or similar figures that match.

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8
Q

Degree

A

The most common unit of measure for angles.

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9
Q

Equilateral triangle

A

A triangle having all three sides congruent and all three angles congruent.

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10
Q

Isosceles triangle

A

A triangle in which at least two sides are congruent.

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11
Q

Line segment

A

A straight path between two end points.

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12
Q

Obtuse angle

A

An angle that measures greater than 90° but less than 180°.

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13
Q

Obtuse triangle

A

A triangle having one obtuse angle.

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14
Q

Parallelagram

A

A quadrilateral pairs of opposite sides congruent and parallel.

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15
Q

Quadrilateral

A

A polygon with 4 sides

16
Q

Rectangle

A

A quadrilateral with opposite sides congruent and parallel and all angles are right angles.

17
Q

Rhombus

A

A parallelogram with all sides congruent.

18
Q

Right angle

A

An angle that measures 90°

19
Q

Right triangle

A

A triangle having one right angle

20
Q

Scalene triangle

A

A triangle with no sides congruent

21
Q

Side

A

A ray that is part of an angle

22
Q

Similar figures

A

Figures that have same shape but different sizes.

23
Q

Square

A

A Parallelogram with all sides congruent, all angles right angles, and opposite sides parallel.

24
Q

Straight angle

A

An angle that measures an exact 180°

25
Q

Supplementary angles

A

Two angles are supplementary if the sum of their measures is 180°

26
Q

Tessalation

A

A pattern formed by repeating figures that fit together without gaps or overlaps.

27
Q

Trapezoid

A

A quadrilateral with one pair of opposite sides parallel

28
Q

Vertex

A

The common endpoint of the two rays that form an angle

Science Stuff (4 decks)

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