The size of an angle on a straight line
What is 180 degrees?
Two lines that will never meet
What are parallel lines?
The sum of the interior angles of a triangle
What is 180?
The sum of the interior angles of any quadrilateral
What is 360°?
A polygon with 3 sides
What is a triangle?
Classification of an angle less than 90°
What is an acute angle?
A line that crosses two other lines
What is a transversal?
A triangle with all equal sides
What is an equilateral triangle?
Polygon that has 4 sides
What is a quadrilateral?
A polygon with 8 sides
What is an octagon?
Exactly 360° angle
What is a revolution?
The sum of co-interior angles
What is 180 degrees?
A triangle with one right angle
What is a right-angled triangle?
A quadrilateral with four equal sides and four right angles
What is a square?
A polygon with 5 sides
What is a pentagon?
Two angles that add up to 90°
What are complementary angles?
Two angles on parallel lines that make a Z shape
What are alternate angles?
A triangle with no equal sides
What is a scalene triangle?
A quadrilateral with only one pair of parallel sides
What is a trapezium?
A polygon with all equal sides and angles
What is a regular polygon?
Two angles that add up to 180°
What is supplementary angles?
The letter that corresponding angles make
What is F?
If two angles of a triangle are 60° and 80°, what is the third angle?
What is 40°?
A quadrilateral with two equal sides, equal opposite angles, but no parallel sides
What is a kite?
A type of polygon that has at least one interior reflex angle
What is a concaving polygon?