# 9.11: Angle Measures in Given Quadrilaterals

Difficulty Level: At Grade Created by: CK-12
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Practice Angle Measures in Given Quadrilaterals

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Estimated5 minsto complete
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### Vocabulary Language: English

TermDefinition
Congruent Congruent figures are identical in size, shape and measure.
Parallel Two or more lines are parallel when they lie in the same plane and never intersect. These lines will always have the same slope.
Parallelogram A parallelogram is a quadrilateral with two pairs of parallel sides.
Quadrilateral A quadrilateral is a closed figure with four sides and four vertices.
Rectangle A rectangle is a quadrilateral with four right angles.
Rhombus A rhombus is a quadrilateral with four congruent sides.
Square A square is a polygon with four congruent sides and four right angles.
Trapezoid A trapezoid is a quadrilateral with exactly one pair of parallel opposite sides.

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