Lines
What are lines that always stay the same distance apart and never intersect?
Parallel lines
What is an angle that measures 90 degrees?
Right angle
What is a triangle with exactly one 90 degree angle?
Right Triangle
What is a polygon with 4 sides?
quadrilaterals
What is a closed figure made up of line segments?
Polygon
What are lines that intersect and create right angles?
Perpendicular Lines
What is an angle that is larger than a right angle?
Obtuse angle
What is a triangle with congruent (equal) angles and congruent (equal) sides?
Equilateral Triangle
What is a polgon with two sets of parallel lines?
parallelogram
What is a figure that doesn't have equal side lengths, and/or equal angles?
Irregular Polygon
Lines that cross each other and form angles; but NOT 90 degree angles.
Intersecting lines
What is an angle that is less than 90 degrees?
Acute angle
What is a triangle with no sides equal?
Scalene triangle
What is a quadrilateral with congruent (equal) sides and angles?
square
What is a 6 sided polygon that has all 6 equal side lengths and all equal angles?
Regular Hexagon
What is perpendicular lines?
Lines that intersect at right angles.
What is a 180 degree angle or a straight line?
Straight Angle
What is a triangle with two sides the same length?
Isosceles triangle
What is a quadrilateral with congruent sides, two obtuse angles, and two acute angles?
rhombus
What is a 5 sided polygon that doesn't have equal side lengths and/or equal angles?
Irregular Pentagon
What are parallel lines?
Lines that never will intersect.
What is an acute angle?
89.9 degrees
What is a triangle with one obtuse angle measuring more than a 90 degree angle?
obtuse triangle
What is a quadrilateral that has exactly one pair of parallel sides?
trapezoid
What is a triangle that has all acute angles?
Acute Triangle