What is an angle less than 90 degrees called?

What is the sum of angles in a triangle?

What type of angle is exactly 90 degrees?

Two lines that meet at a right angle are called?

What is an angle greater than 90 degrees but less than 180 degrees called?

Which of these is NOT a type of line?

What is the name for two angles that add up to 180 degrees?

If one angle of a right triangle is 30 degrees, what is the measure of the other non-right angle?

Lines that never intersect are called?

What is the measure of a straight angle?