To classify each quadrilateral, we look at its sides and angles:
1.
Parallelogram – Opposite sides are parallel and equal. No right angles shown → not rectangle or square. Not all sides equal → not rhombus. So it’s a general parallelogram.
2.
Square – All 4 sides equal, all angles 90°. Looks like a perfect box with equal sides.
3.
Rectangle – Opposite sides equal, all angles 90°. Sides not all equal → not square.
4.
Scalene (irregular) – No sides equal, no parallel sides, no right angles. Just a random 4-sided shape.
5.
Rhombus – All 4 sides equal, opposite sides parallel. Angles not 90° → not square.
6.
Trapezoid – Only one pair of opposite sides is parallel (top and bottom). Other two sides slant inward.
7.
Parallelogram – Same as #1: opposite sides parallel and equal, no right angles, sides not all equal.
8.
Rectangle – Same as #3: opposite sides equal, all angles 90°, but not all sides equal.
9.
Rhombus – Same as #5: all sides equal, opposite sides parallel, angles not 90°.
Let me double-check:
- Square: only #2 fits — all sides equal + all right angles.
- Rectangle: #3 and #8 — right angles, opposite sides equal, but not all sides equal.
- Rhombus: #5 and #9 — all sides equal, but no right angles.
- Parallelogram: #1 and #7 — opposite sides parallel/equal, but neither all sides equal nor right angles.
- Trapezoid: #6 — only one pair of parallel sides.
- Scalene/irregular: #4 — nothing special about sides or angles.
All match standard definitions for Grade 5 geometry.
Final Answer:
1. parallelogram
2. square
3. rectangle
4. scalene (irregular)
5. rhombus
6. trapezoid
7. parallelogram
8. rectangle
9. rhombus
Parent Tip: Review the logic above to help your child master the concept of printable quadrilateral shapes.
