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18 Cards in this Set
- Front
- Back
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If asked to classify a triangle by its angles what are the four options?
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Acute, Obtuse, Right, Equiangular
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If asked to classify a triangle by its sides what are the three options?
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Scalene, Isosceles, Equilateral
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What is an Acute Triangle?
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A triangles who angles are all acute (less than 90 degrees).
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What is an Obtuse Triangle?
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A triangle that has one obtuse angle (greater than 90 degrees).
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What is a Right Triangle?
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A triangle that has one right angle (90 degree angle).
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What are the names of the sides of a Right Triangle?
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What is an Equiangular Triangle?
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A triangle whose angles are all congruent (equal).
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What is a Scalene Triangle?
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A triangle that has no sides congruent (equal).
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What is an Isosceles Triangle?
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A triangle that has at least TWO sides congruent (equal).
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What is an Equilateral Triangle?
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A triangle whose sides are ALL congruent (equal).
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What are the names of the sides and angles of an isosceles triangle?
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What is the sum of the angles of a triangle?
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The sum of the angles of a triangle equals 180 degrees.
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What are congruent triangles?
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Two triangles whose corresponding sides and angles are congruent.
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What is a Reflection Transformation?
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A transformation over a line called the line of reflection (flip).
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What is a Translation Transformation?
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A transformation that moves all points of the original figure the same distance in the same direction.
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What is a Rotation Transformation?
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A transformation around a fixed point called the center of rotation (turn).
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What is the Isosceles Triangle Theorem?
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If two sides of a triangle are congruent, then the angles opposite those sides are congruent.
OR If two angles of a triangle are congruent, then the sides opposite those angles are also congruent. |
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Which two angles are remote interior angles to angle 1?
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