Let’s go through each shape one by one and classify it based on its sides and angles.
We’re looking at 9 shapes. For each, we’ll decide which category it fits into:
- Square: all 4 sides equal, all angles 90°
- Rectangle: opposite sides equal, all angles 90°
- Rhombus: all 4 sides equal, angles not necessarily 90°
- Parallelogram: opposite sides parallel and equal, angles not necessarily 90°
- Trapezoid: only one pair of opposite sides parallel
- Scalene: no sides equal, no parallel sides (for quadrilaterals, this means irregular with no symmetry)
Note: Some shapes can fit more than one category — we pick the most specific one. For example, a square is also a rectangle and a rhombus, but we call it a “square” because that’s the most precise.
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Shape 1: Looks like a slanted parallelogram. Opposite sides are equal and parallel. Angles are not 90°. So →
Parallelogram
Shape 2: All sides look equal, and all angles look 90°. So →
Square
Shape 3: Opposite sides equal, all angles 90°, but adjacent sides are different lengths. So →
Rectangle
Shape 4: No sides appear parallel or equal. It’s irregular. So →
Scalene
Shape 5: Slanted, opposite sides equal and parallel, angles not 90°. Same as Shape 1 →
Parallelogram
Shape 6: Only the top and bottom sides are parallel. The other two sides are not parallel. So →
Trapezoid
Shape 7: Slanted, opposite sides equal and parallel, angles not 90° →
Parallelogram
Shape 8: Opposite sides equal, all angles 90°, but width ≠ height →
Rectangle
Shape 9: Slanted, opposite sides equal and parallel, angles not 90° →
Parallelogram
Wait — let’s double-check Shape 2. Is it really a square? Yes, if all sides are equal and all angles are 90°, it’s a square.
Shape 4: Definitely no parallel sides — so scalene is correct.
Shape 6: Only one pair of parallel sides — trapezoid.
All others are clear.
Final classifications:
1. Parallelogram
2. Square
3. Rectangle
4. Scalene
5. Parallelogram
6. Trapezoid
7. Parallelogram
8. Rectangle
9. Parallelogram
Final Answer:
1. Parallelogram
2. Square
3. Rectangle
4. Scalene
5. Parallelogram
6. Trapezoid
7. Parallelogram
8. Rectangle
9. Parallelogram
Parent Tip: Review the logic above to help your child master the concept of printable worksheet on quadrilaterals.