This easy worksheet gets third graders thinking about the building blocks of shapes — sides, vertices, and parallel lines. Students fix sentences like "a rectangle has 2 vertices and 4 sides" and "a trapezoid has 2 pairs of parallel sides," then fill in blanks about hexagons, perpendicular lines, and parallelograms. A true-or-false section checks whether triangles really have 3 vertices and whether perpendicular lines can also be parallel.
It is a gentle warm-up that locks in the vocabulary kids need before they start sorting and classifying polygons.
Style:
Attributes of Shapes
Part A: Fix the Sentence
Each sentence has an error. Rewrite it correctly on the line.
1. Fix the sentence:
A rectangle has 2 vertices and 4 sides.
Rewrite: A rectangle has 4 vertices and 4 sides.
2. Fix the sentence:
Parallel lines cross each other at a point.
Rewrite: Parallel lines never cross each other.
3. Fix the sentence:
A trapezoid has 2 pairs of parallel sides.
Rewrite: A trapezoid has 1 pair of parallel sides.
Part B: Fill in the Blank
Write the missing word or number on each line.
1. A polygon with 6 sides has 6 vertices.
2. Two lines that meet at a right angle are called perpendicular lines.
3. A parallelogram has 2 pairs of parallel sides.
4. The point where two sides of a shape meet is called a vertex.
Part C: True or False?
Read each statement. Circle True or False.
1. A triangle has 3 vertices.
True False
2. Perpendicular lines are always parallel.
True False
3. A rectangle has 2 pairs of parallel sides.
True False
Attributes of Shapes
★ Part A: Fix the Sentence
Each sentence has an error. Rewrite it correctly on the line.
1) Fix the sentence:
A rectangle has 2 vertices and 4 sides.
Rewrite: A rectangle has 4 vertices and 4 sides.
2) Fix the sentence:
Parallel lines cross each other at a point.
Rewrite: Parallel lines never cross each other.
3) Fix the sentence:
A trapezoid has 2 pairs of parallel sides.
Rewrite: A trapezoid has 1 pair of parallel sides.
★ Part B: Fill in the Blank
Write the missing word or number on each line.
1) A polygon with 6 sides has 6 vertices.
2) Two lines that meet at a right angle are called perpendicular lines.
3) A parallelogram has 2 pairs of parallel sides.
4) The point where two sides of a shape meet is called a vertex.
★ Part C: True or False?
Read each statement. Circle True or False.
1) A triangle has 3 vertices.
True
False
2) Perpendicular lines are always parallel.
True
False
3) A rectangle has 2 pairs of parallel sides.
True
False
Ready to Practice?
Complete each section carefully.
10 Questions
15-20 minutes
Auto-graded
Retry anytime
🏆
Questions Correct
0
Correct
0
Incorrect
0
Skipped
0:00
Time
0%
Score
Review Your Answers
See what you got right, missed, or skipped.