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P1 Maths: 2D Shapes (10 Basic Items)
P1 Maths: 2D Shapes (10 Basic Items)
Ten basic items: recognising triangles, squares, rectangles, circles, pentagons and hexagons, counting sides and corners, finding a perimeter from a side, and correcting the idea that a circle has a corner.
Focus Count sides first, then corners; the number in a shape name is its side count.
01 Paper details (check answers afterwards)
| Item | Detail |
|---|---|
| Questions | 10 |
| Suggested time | 25 |
| Difficulty mix | Foundation 4 · Intermediate 3 · Challenge 2 · Error redo 1 |
| Chapter | Chapter: P1 Maths: 2D Shapes |
| Level | P1 Maths |
02 Questions (10 items)
- FoundationHow many sides and how many corners does a triangle have?
- FoundationA square has sides of 5 cm each. What is its perimeter?
- FoundationA rectangle is 8 cm long and 3 cm wide. What is true of its opposite sides, and what is its perimeter?
- FoundationHow many corners does a circle have?
- IntermediateHow many sides do a pentagon and a hexagon each have?
- IntermediateA regular hexagon has sides of 4 cm each. What is its perimeter?
- IntermediateWhich shape has 4 equal sides and 4 right angles: a square, a rectangle, or a circle?
- ChallengeWhat shapes can you make with two identical right-angled triangles?
- ChallengeWhich 2D shape is each of these closest to: a wheel, a book, a stop sign?
- Error redoA student says a circle has one corner because going round brings you back to the start. What is wrong?
03 Answers and one-line notes
| # | Answer | One-line note |
|---|---|---|
| 1 | A triangle has 3 sides and 3 corners. | Every triangle has the same number of sides and corners. |
| 2 | 5 × 4 = 20 cm. | A square has four equal sides, so its perimeter is one side times four. |
| 3 | Opposite sides are equal; perimeter = (8 + 3) × 2 = 22 cm. | A rectangle has two pairs of equal sides, so length and width each appear twice. |
| 4 | A circle has no corners; its edge is a continuous curve. | A corner needs two straight edges meeting, and a circle has none. |
| 5 | A pentagon has 5 sides and a hexagon has 6 sides. | The number in a shape name tells you how many sides it has. |
| 6 | 4 × 6 = 24 cm. | For a regular polygon the perimeter is one side times the number of sides. |
| 7 | A square. | A rectangle only has opposite sides equal, and a circle has no straight edges at all. |
| 8 | You can make a rectangle, a parallelogram, or a larger triangle. | The same two pieces can form different shapes, so the arrangement must be stated. |
| 9 | A wheel is close to a circle, a book to a rectangle, and a stop sign to an octagon. | Real objects only roughly match a shape; corners may be rounded off. |
| 10 | The edge of a circle is one continuous curve with no vertices, so it has 0 corners. | Returning to the start only shows the edge is closed, which says nothing about corners. |
04 What to do after marking
- After marking, redo only the wrong items and write down which step went wrong (formula, unit, or misread number).
- Repeat the same item two days later; move to the next paper only when both attempts are correct.
- Parents only need the answer and note columns; there is no need to explain every item.
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Questions and answers are written originally by the TutorZone team and are not taken from any school, publisher or examination authority paper. Every value is checked by computer.