Quadrilaterals
Name the four-sided figures family that includes rectangles, rhombuses, and squares.
Quadrilaterals
A closed plane figure with straight sides is called a what?
Polygon
What attribute describes two sides that never meet no matter how far extended?
Parallel sides
In a Venn diagram nesting polygons and quadrilaterals, which label should be the outermost?
Polygons
This quadrilateral always has two pairs of parallel sides.
Parallelogram
True or False: All quadrilaterals are polygons.
True
Name an angle type that measures exactly 90 degrees
Right angle
True or False: Squares are a subcategory of rectangles.
True
A quadrilateral with four equal sides and four right angles. What is it?
Square
This is a three-sided polygon; name it.
Triangle
Which attribute means all sides are the same length?
Congruent sides (or "equal side lengths")
A Venn diagram shows Rectangles and Squares as two disjoint ovals inside Parallelograms. Is this correct? Explain in one sentence.
No — Squares are a subcategory of Rectangles, so they should overlap or be nested, not disjoint.
This quadrilateral has exactly one pair of parallel sides.
Trapezoid
Give two attributes that all polygons must have.
Straight sides and closed shape (non-overlapping), and at least three sides
State one attribute that rhombuses and parallelograms always share
2 pairs of parallel sides
Draw or describe a correct nested Venn diagram order for: Polygons, Quadrilaterals, Rhombuses, Squares.
Polygons (outer) → Quadrilaterals → Rhombuses → Squares (innermost)
Name the quadrilateral that always has four right angles but does not have to have four equal sides.
Rectangle
Explain why a circle is NOT a polygon
A circle has a curved edge and does not have straight sides, so it is not a polygon.
Give an attribute that rhombuses always have but parallelograms only sometimes have
4 sides of equal length
Describe how a tree diagram would show the relationship between Quadrilaterals, Parallelograms, Rectangles, and Squares
Quadrilaterals at the top; branch to Parallelograms; Parallelograms branch to Rectangles and Rhombuses; Squares are a sub-branch under Rectangles