Angles
An angle whose measure is 90 degrees
What is a right angle?
Two or more lines that lie in the same plane and do not intersect
What are parallel lines?
A five sided polygon
What is a pentagon?
A triangle with one 90 degree angle?
What is a right triangle?
A quadrilateral with two pairs of opposite sides
What is a parallelogram?
An angle whose measure is less than 90 degrees
What is an acute angle?
Two lines that intersect to form a right angle
What are perpendicular lines?
A polygon whose sides and angles are all equal
What is a regular polygon?
A triangle with three angles measuring less than 90 degrees
An equilateral paralellogram
What is a rhombus?
An angle whose measure is greater than 90 degrees
What is an obtuse angle?
Two angles whose measures have the sum of 90 degrees
What are complimentary angles?
A polygon is a closed, two-dimensional shape, made up of only ______________ lines
What is straight?
A triangle with one obtuse angle?
What is an obtuse triangle?
A quadrilateral with 2 pairs of parallel sides, 2 pairs of equal sides, and 4 right angles
What is a rectangle?
Two angles with the same measure
What is congruent angles?
Two angles whose measures have the sum of 180 degrees
What are supplementary angles?
A ten-sided polygon
What is a decagon?
A triangle with at least two congruent sides
What is an isosceles triangle?
Any quadrilateral with opposite sides that are the same length. (4 possible answers)
Parallelogram, Rhombus, Rectangle, Square
The angles opposite each other when two lines cross. They are always equal.
What are vertical angles?
A ray that divides an angle into two congruent angles
What is an angle bisector?
Two sides of a polygon that share a common vertex
What are consecutive sides?
The measurement, in degrees, of a straight angle
What is 180 degrees?
A quadrilateral with exactly one pair of parallel sides?
What is a trapezoid?