This medium worksheet pushes third graders past simple naming and into careful counting and matching. Fill-in-the-blank items cover perpendicular lines, the 5 vertices of a pentagon, the 4 right angles inside a rectangle, and what makes a rhombus special with its 4 equal sides. The matching section then asks students to pair a parallelogram, trapezoid, square, and irregular quadrilateral with descriptions like "exactly 1 pair of parallel sides" and "4 equal sides, 4 right angles."
It strengthens the precise vocabulary kids need before tackling shape hierarchies.
Style:
Attributes of Shapes
Part A: Fill in the Blank
Write the missing word or number on each line.
1. Two lines that meet at a 90-degree angle are called perpendicular lines.
2. A pentagon has 5 vertices.
3. A rectangle has perpendicular sides that form 4 right angles.
4. A shape with exactly 3 vertices and 3 sides is a triangle.
5. A decagon has 10 sides and 10 angles.
6. Opposite sides of a rectangle are both equal and parallel.
7. A quadrilateral with no parallel sides and no equal sides is called an irregular quadrilateral.
8. A rhombus has 4 equal sides.
9. A polygon must be a closed shape made of straight lines.
Part B: Matching
Match each item on the left to the correct answer on the right.
1. Match each item to its correct answer.
Parallelogram
→ 2 pairs of parallel sides, opposite sides equal
No parallel sides, no equal sides
Trapezoid
→ Exactly 1 pair of parallel sides
4 equal sides, 4 right angles
Square
→ 4 equal sides, 4 right angles
2 pairs of parallel sides, opposite sides equal
Irregular quadrilateral
→ No parallel sides, no equal sides
Exactly 1 pair of parallel sides
Attributes of Shapes
★ Part A: Fill in the Blank
Write the missing word or number on each line.
1) Two lines that meet at a 90-degree angle are called perpendicular lines.
2) A pentagon has 5 vertices.
3) A rectangle has perpendicular sides that form 4 right angles.
4) A shape with exactly 3 vertices and 3 sides is a triangle.
5) A decagon has 10 sides and 10 angles.
6) Opposite sides of a rectangle are both equal and parallel.
7) A quadrilateral with no parallel sides and no equal sides is called an irregular quadrilateral.
8) A rhombus has 4 equal sides.
9) A polygon must be a closed shape made of straight lines.
★ Part B: Matching
Match each item on the left to the correct answer on the right.
1) Match each item to its correct answer.
Parallelogram
→ 2 pairs of parallel sides, opposite sides equal
No parallel sides, no equal sides
Trapezoid
→ Exactly 1 pair of parallel sides
4 equal sides, 4 right angles
Square
→ 4 equal sides, 4 right angles
2 pairs of parallel sides, opposite sides equal
Irregular quadrilateral
→ No parallel sides, no equal sides
Exactly 1 pair of parallel sides
Ready to Practice?
Complete each section carefully.
10 Questions
10-15 minutes
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