MATH CHAPTER 5: VOCABULARY
Studied by 0 people
Call Kai
Learn
Practice Test
Spaced Repetition
Match
Flashcards
Knowt Play1/23
There's no tags or description
Looks like no tags are added yet.
Name | Mastery | Learn | Test | Matching | Spaced | Call with Kai |
|---|
No analytics yet
Send a link to your students to track their progress
24 Terms
COMPLEMENTARY ANGLES
A pair of angles whose sum is 90 degrees
SUPPLEMENTARY ANGLES
A pair of angles whose sum is 180 degrees
ADJACENT ANGLES
A pair of angles that share a common vertex and common side but do not overlap.
Vertical angles
A pair of congruent angles that share a common vertex but are not adjacent. They are congruent.
Are vertical angles adjacent?
No, vertical angles are not adjacent.
Do vertical angles have the same measure?
Yes, vertical angles are congruent.
What are vertical angles formed by?
Two intersecting lines
LINEAR PAIR
A pair of supplementary adjacent angles that form a straight angle.
CONGRUENT
Having the same size and shape
CORRESPONDING ANGLES
A pair of congruent angles that are in the same relative position where two lines intersect.
ALTERNATE INTERIOR ANGLES
A pair of congruent angles that are on the inside of the parallel lines and on opposite sides of a transversal.
ALTERNATE EXTERIOR ANGLES
A pair of congruent angles that are on the outside of the parallel lines and on opposite sides of the transversal.
SAME-SIDE INTERIOR ANGLES
A pair of supplementary angles that are on the inside of the parallel lines and on the same side of the transversal.
RIGHT TRIANGLE
A triangle that has a right angle (90°)
ACUTE TRIANGLE
A triangle that has all angles less than 90° (90° is a Right Angle)
OBTUSE TRIANGLE
A triangle that has an angle greater than 90°
EQUILATERAL TRIANGLE
A triangle with all three sides of equal length. (Angle measures are the same as well)
ISOCELES TRIANGLE
A triangle with two equal sides.The angles opposite the equal sides are also equal.
SCALENE TRIANGLE
A triangle with all sides of different lengths. All angles are different, too. No sides are equal and no angles are equal.
INTERIOR ANGLES OF A TRIANGLE
Angles inside a triangle; add up to 180
EXTERIOR ANGLES OF A TRIANGLE
When the sides of a triangle are extended, the angles that are adjacent to the interior angles. The angle between any side of a shape, and a line extended from the next side.
TRIANGLE SUM THEOREM
IF 3 ANGLES FORM A TRIANGLE, THEN THEIR SUM IS 180 DEGREES
EXTERIOR ANGLE THEOREM
IN A TRIANGLE, THE MEASURE OF THE EXTERIOR ANGLES EQUALS THE SUM OF THE MEASURES OF THE TWO REMOTE INTERIOR ANGLES
TRIANGLE INEQUALITY THEOREM
The sum of the lengths of any two sides of a triangle must be GREATER THAN the length of the third side.
Note 
Flashcards (150)