Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
10 Cards in this Set
- Front
- Back
|
Angle
|
Two rays with a common endpoint
|
|
|
Interior angles
|
Angles inside the shape
|
|
|
Exterior angles
|
Angles outside the shape
|
|
|
Supplementary angles
|
Two angles that add up to 180 degrees
|
|
|
Complementary angles
|
Two angles that add up to 90 degrees
|
|
|
Right angle
|
An angle formed by perpendicular lines, line segments, or rays with a measure of exactly 90 degrees
|
|
|
Acute angle
|
An angle that is more than 0 degrees but less than 90 degrees
|
|
|
Obtuse angle
|
An angle whose measure is greater than 90 degrees but less than 180 degrees
|
|
|
Right triangle
|
A triangle with one right angle
|
|
|
Obtuse triangle
|
A triangle with one obtuse angle
|
