Quadrilaterals
How many sides does a quadrilateral have?
4 sides
What is a straight path that goes on forever in both directions?
Line
What type of angle measures exactly 90°?
Right angle
What do we call a line that divides a shape into two identical halves?
Line of symmetry
What do we call lines that never meet?
Parallel lines
What quadrilateral has four equal sides and four right angles?
Square
What type of line starts at one endpoint and goes forever in one direction?
Ray
What type of angle measures less than 90°?
Acute angle
How many lines of symmetry does a square have?
4
What do we call lines that meet at a 90° angle?
Perpendicular lines
What quadrilateral has four equal sides but does NOT have four right angles?
Rhombus
What is formed when two rays meet at a point?
Angle
What type of angle measures more than 90° but less than 180°?
Obtuse angle
How many lines of symmetry does a rectangle have?
2
How many pairs of parallel sides does a square have?
2 pairs
What quadrilateral has opposite sides that are parallel and equal in length?
Parallelogram
What is the point called where two rays meet?
Vertex
How many acute angles are in a right triangle?
2
How many lines of symmetry does a heart shape usually have?
1
Which shape has the same number of pairs of parallel sides as a square: hexagon, pentagon, rhombus, or triangle?
Rhombus
Which quadrilateral has 4 lines of symmetry?
Square
What is the difference between a line and a line segment?
A line goes on forever, while a line segment has two endpoints.
What kind of triangle has one obtuse angle?
Obtuse triangle
What happens if you fold a symmetrical shape along its line of symmetry?
Both sides match exactly.
Name a real-life example of perpendicular lines.
corner of paper, crosswalk, plus sign, window frame