Angles
Angles and Lines
Polygons
Triangles
Potpourri
100
An angle whose measure is 90 degrees.
What is a right angle?
100
Two or more lines that lie in the same plan and do not intersect.
What are parallel lines?
100
A five-sided polygon.
What is a pentagon?
100
A triangle with one right angle.
What is a right triangle?
100
A point that bisects a line segment.
What is a midpoint?
200
An angle whose measure is less than 90 degrees.
What is an acute angle?
200
Two lines that intersect to form a right angle.
What are perpendicular lines?
200
A polygon whose sides are equal in measure.
What is an equilateral polygon?
200
A triangle with three sides of equal length.
What is an equilateral triangle?
200
Two or more points that lie on the same line.
What are collinear points?
300
An angle whose measure is greater than 90 degrees.
What is an obtuse angle?
300
Two angles whose measure have the sum of 90 degrees.
What are complementary angles?
300
A polygon in which no diagonal is outside the polygon.
What is a convex polygon?
300
A triangle with one obtuse angle.
What is an obtuse triangle?
300
If two planes intersect, then they intersect in exactly one _________.
What is a line?
400
Two angles with the same measure.
What are congruent angles?
400
Two angles whose measure have the sum of 180 degrees.
What are supplementary angles?
400
A ten-sided polygon.
What is a decagon?
400
Two angles of a triangle that are opposite two sides of equal length.
What are base angles?
400
The following picture is an example of a __________ transformation.
What is a reflection?
500
A ray that divides an angle into two congruent angles.
What is an angle bisector?
500
A pair of non-adjacent angles formed by two intersection lines.
What are vertical angles?
500
Two sides of a polygon that share a common vertex.
What are consecutive sides?
500
A triangle with at least two congruent sides and three acute angles.
What is an isosceles acute triangle?
500
A transformation in which all the points of a figure move the same distance and in the same direction.
What is a translation?
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