Lines
Angles
Triangles
Polygons
Misc.
100
Lines that are the same distance apart and will never cross
What are parallel lines?
100
A figure formed by at least two rays connected by the same endpoint.
What is an angle?
100
A triangle where all angles and sides are congruent.
What is an equiangular and equilateral triangle?
100
A polygon with 7 sides
What is a heptagon?
100
Reasoning based on accepted statements.
What is deductive reasoning?
200
Lines that intersect to form a right angle.
What are perpendicular lines?
200
If two parallel lines are cut by a transversal, these angles are on the inside of the two parallel lines and on the same side of the transversal.
What are same-side interior/consecutive angles?
200
A triangle with angle measurements: 15, 15 and 150 degrees.
What is an isosceles obtuse triangle?
200
A polygon where its interior angle sums up to 1440 degrees
What is a decagon?
200
In a plane, showing that both lines are perpendicular to a third line.
What is one way to prove 2 lines are parallel?
300
A line that intersects at least two coplanar lines.
What is a transversal?
300
When 2 parallel lines are both intersected by a transversal, these angles occupy the same position on the top and bottom parallel lines.
What are corresponding angles?
300
A triangle with angle measurements: 35, 40 and 105 degrees.
What is a scalene obtuse triangle?
300
An equilateral and equiangular quadrilateral.
What is a square?
300
A triangle that has two angles that are 45 degrees.
What is an isosceles right triangle?
400
Two noncoplanar lines that never intersect.
What are skew lines?
400
Used to find missing angle measurements (not an angle relationship).
What is a protractor?
400
A triangle with side lengths: 3, 4 and 5 units.
What is a scalene right triangle?
400
A polygon such that no diagonal is exterior to the polygon.
What is a convex polygon?
400
64, 16, 4, 1, ____
What is 1/4 (0.25)?
500
An infinite set of points that extends in two directions. Has no width and no thickness.
What is a line?
500
An angle with more than 180 degrees.
What is a reflex angle?
500
A triangle with angle measurements: 60, 45 and 65 degrees.
What is an impossible triangle?
500
A regular polygon where the measure of one exterior angle is 40 degrees.
What is a nonagon?
500
A boat has a sail with one pair of perpendicular lines, and two sides the same length. Name the triangle.
What is a right isosceles triangle?
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