Show:
Angles and sides
Geometry VS
Lines of Simmetry
Complex Quadrilaterals
Fun Facts
100
How many sides must a quadrilateral have?
4
100
What is the difference between irregular and regular quadrilaterals? Give some examples of both (Two irregular for double points).
A regular quadrilateral has the same length of sides and degrees of angles. Eg. square (regular), rectangle, rhombus and trapezoid (irregular).
100
What is a line of symmetry?
It is a line that divides a shape in half
100
What is a complex quad, and what are its properties?
A complex quad or "self-intersecting" quad is a quadrilateral that has one or more pair of intersecting lines.
100
What does the prefix quad mean?
4
200
How many degrees do the interior angles of a quadrilateral add up to?
360 degrees
200
What is the relationship between a rectangle and a square?
A square is a rectangle, but a rectangle is not a square.
200
What is the greatest number of lines of symmetry a quad can have?
4, the only shape that has these many is the square
200
How many sides does a complex quadrilateral have?
4
200
Where was the quadrilateral invented? Hint: It might have been invented in a place being studied by a group in Spanish class.
Ancient India.
300
What is the maximum number of degrees one angle of a quadrilateral can have?
179 degrees
300
How is a kite different from a rhombus?
A rhombus has all equal sides (based on length), but not necessarily all equal angles. And a kite has different sizes of sides and different angles.
300
Do all quadrilaterals have lines of symmetry?
no
300
Can a complex quadrilateral still have a line of symmetry?
Yes, it can. However it does not need to have one.
300
Are quadrilaterals always called quadrilaterals?
No, some other names for quadrilaterals are: Quadrangle (four angles) or Tretragon (Four and Polygon).
400
An regular quadrilateral shape must have how many degrees in one of its interior angles?
90 degrees
400
What is the difference between a trapezoid and a trapezium?
A trapezium has no equal sides, no parallel lines and no equal angles. A trapezoid has one set of parallel lines, but angles and lengths of sides.
400
What is the number of lines of symmetry of a trapezium?
0
400
Does a complex quadrilaterals angles still add up to 360 degrees?
Yes, even though they are "complex" they are still quadrilaterals and thus they have to have 360 degrees.
400
What do you call a 3D quadrilateral?
Nothing, a quadrilateral itself a plane figure which means it has to be in 2D.
500
Which quadrilateral shape can have the most total degrees?
All of them
500
What is the difference between a parallelogram and a quadrilateral?
A quad does not have to have two sets of parallel lines, while a parallelogram does.
500
What is the smallest number of lines of symmetry a quadrilateral can have?
0, a trapezium has no lines of symmetry.
500
Are complex quadrilaterals polygons?
No, because they have intersecting lines.
500
Now that you've learned so much about quadrilaterals, it's time to test your knowledge. Tell us each fact that distinguishes quadrilaterals from other shapes/polygons. 100 extra points for each answer.
4 sides, 4 angles, 4 vertices, interior angles = 360 degrees, does not have to be a polygon, 0-4 lines of symmetry.