Types of Triangles
Types of Angles
Types of lines
Special Angle Pairs
100
A triangle that has all sides of different lengths
What is scalene triangle?
100
An angle that measures less than 90 degrees.
What is an acute angle?
100
A line that intersects two or more lines in the same plane.
What is a transversal?
100
Two angles whose sum is 180 degrees.
What are supplementary angles?
200
A triangle with two sides of the same length and one side of a different length
What is an isosceles triangle?
200
An angle that measures 180 degrees.
What is a straight angle?
200
This is referred to as part of a line.
What is a line segment?
200
Angles of the same measure.
What is congruent?
300
Two triangles that are the exact same shape, but not always the same size.
What are similar figures?
300
An angle that measures exactly 90 degrees.
What is a right angle?
300
This object extends forever in both directions.
What is a line?
300
What is the measure of complementary angles?
What 90 degrees?
400
A triangle that has one angle measuring more than 90 degrees and two angles that each measure less than 90 degrees.
What is an obtuse triangle?
400
An angle that measures more than 90 degrees but less than 180 degrees.
What is an obtuse angle?
400
A pair of lines extended forever but they will never intersect.
What is parallel lines?
400
Angles between two lines and on the same side of a transversal.
What are same-side interior angles?
500
A triangle that has side lengths of 7 inches, 5 inches, and 3 inches.
What is a scalene triangle?
500
A point where two rays meet forming an angle.
What is a vertex?
500
Lines that intersect to form right angles
What is perpendicular lines?
500
Angles formed by two intersecting lines that share a vertex and are not adjacent.
What are vertical angles?
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