Angles
What is another name for an angle that is 90 degrees?
Right
How many sides are in an octagon?
8
Straight line
If two angles add up to 90 degrees, they are called what?
Complementary angles
What kind of triangle has two sides that are the same length?
What do you call two lines that never touch?
Parallel lines
If two angles add up to 180 degrees, they are called what?
Supplementary angles
What shape has four sides and both sets of lines are parallel?
Parallelogram
What do you call two lines that intersect at a 90 degree angle?
Perpendicular lines
What do you call an angle greater than 90 degrees but less than 180 degrees?
Obtuse
What shape has four sides and only two lines are parallel?
Trapezoid
What do you call two lines that cross one another but do not form a 90 degree angle?
Intersecting lines
If two angles are congruent, they are _____
Equal/the same
What do you call a triangle with no equal sides?
Scalene triangle
How many points are there on a line?
Infinite