Classifying Quadrilaterals — Answer Key
Part A: Multiple Choice
Circle the best answer for each question.
1. A window pane is shaped with 4 right angles and opposite sides equal. What is it?
A) Rectangle
B) Rhombus
C) Trapezoid
D) Pentagon
Grade 4 students classify the window as a rectangle from its 4 right angles.
2. A road sign has 4 equal sides and is tilted on its corner. It is a ___.
A) Square (turned diagonally)
B) Trapezoid
C) Triangle
D) Hexagon
Grade 4 work shows a tilted square is still a square because angles do not change.
3. Which statement is TRUE about every parallelogram?
A) Has 2 pairs of parallel sides
B) Has 4 equal sides
C) Has 4 right angles
D) Has only one pair of parallel sides
Grade 4 students know parallelograms always have 2 pairs of parallel sides.
4. Which shape is IMPOSSIBLE to draw?
A) A trapezoid with 2 pairs of parallel sides
B) A square with 4 right angles
C) A rhombus that is not a square
D) A rectangle with opposite sides equal
Grade 4 work shows a trapezoid with 2 pairs of parallel sides would be a parallelogram, not a trapezoid.
Part B: Fill in the Blank
Write the correct answer on each line.
1. A kite shape with 4 equal sides and slanted corners is a rhombus.
Grade 4 students name a 4-equal-side parallelogram a rhombus.
2. A book cover with 4 right angles and longer top-bottom sides is a rectangle.
Grade 4 students classify the cover as a rectangle.
3. Every rectangle is a parallelogram because it has 2 pairs of parallel sides.
Grade 4 lessons place rectangles in the parallelogram family.
4. A slanted four-sided shape with one pair of parallel sides is a trapezoid.
Grade 4 work labels one-parallel-pair quadrilaterals as trapezoids.
5. A shape that is both a rectangle and a rhombus must be a square.
Grade 4 students see meeting both rules forces the shape to be a square.