This type of angle is special and measures 90 degrees.
right angle
The Triangle Sum Theorem states that the sum of the interior angles of any triangle is always ___ degrees.
180
These types of lines do not extend to infinity and have endpoints.
segments
What type of angle has a measure of 180 degrees?
straight angle
What are the two parts that make up a Triangle?
sides & angles
Which direction would negative slope lines be pointing?
*Draw it out if needed*
left side of the coordinate plane
To correctly name angles, the ___ must always be the middle letter.
vertex
The Triangle Inequality Theorem states that the sum of the two shorter sides must be _______ than the length of the third side.
greater
Perpendicular lines intersect to create 90-degree angles. The slopes of perpendicular lines are the _____ ________.
negative reciprocal