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22 Cards in this Set
- Front
- Back
An angle less than 90 degrees
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Answer: Acute angle
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An angle between 90 and 180 degrees
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Answer: obtuse angle
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An angle with EXACTLY 90 degrees
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Answer: right angle
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An angle with EXACTLY 180 degrees
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Answer: straight angle
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angles that add up to be 90 degrees (don't have to touch)
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Answer: complementary angles
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Angles that add up to be 180 degrees (don't have to touch)
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Answer: supplementary angles
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Angles that are across from each other and are equal
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Answer: vertical angles
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On the inside and on the opposite side of the transversal EQUAL
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Answer: corresponding angles
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EQUAL and in the same spot on each example (top right on 1, top right on 2)
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Answer: Corresponding angles
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Two angles that have a sum of their measures that equals 90 degrees. (They can touch but they do not have to.)
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Answer: Complementary
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Two angles that share a common side and a vertex
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Answer: Adjacent angles
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Lines intersectint to form four right angles
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Answer: Perpendicular lines
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A tiranlge that has three angles that are smaller than 90 degrees
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Answer: Acute triangle
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A triangle that has one angle that is larger than 90 degrees.
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Answer: Obtuse triangle
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A triangle that has one 90 degree angle
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Answer: right triangle
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A triangle that has two sides of equal length
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answer: Isosceles triangle
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A triangle that threee sides of different lengths
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Answer: Scalene triangle
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A tirangle that has three sides of equal length
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Answer: Equilateral triangle
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Two pairs of parallel sides and opposite sides equal.
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Answer: Parallelogram
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4 right angles and opposite sides equal.
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Answer: rectangle
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Two sides are parallel (one pair of sides parallel).
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Answer: trapezoid
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Two pairs of parallel sides and 4 equal sides.
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Answer: Rhombus
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