What are parallel lines?
angles between 2 parallel lines on opposite sides of the transversal
What are alternate interior angles?
Two angles that add up to 90 degrees
What are complementary angles?
A triangle with 3 acute angles
What is an acute triangle?
An angle that measures less than 90 degrees
Lines that intersect to form right angles
What are perpendicular lines?
angles outside of the parallel lines on opposite sides of the transversal
What are alternate exterior angles?
2 angles whose sum is 180 degrees
What are supplementary angles?
A triangle with 3 equal sides
What is an equilateral triangle?
90<ANGLE<180
What is an obtuse angle?
Lines that cross each other at any point
What are intersecting lines?
Angles on the same side of the parallel lines, along the same side of the transversal
What are corresponding angles?
two angles that have a common side between them and share a common vertex
What are adjacent angles?
A triangle with 2 equal sides
What is an ososceles triangle?
An angle that measures more than 180 degrees but less than 360 degrees
What is a reflex angle?
A line that intersects 2 or more lines
What is a transversal?
The angles that are formed when two lines intersect and form opposite angles are equal.
True or False
What is True?
What are vertical or opposite angles?
Can you form a triangle when the sum of the 2 shorter sides is less than or equal to the longest given side?
What is no?
The sum of the interior angles of a triangle
What is 180 degrees?
What three pieces of information do you need to draw a triangle?
What are Sides, angles or a combination of both?