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Primary 5 Maths: Triangle, Parallelogram and Trapezium Area — Practice Paper 2 (10 Questions)
Primary 5 Maths: Triangle, Parallelogram and Trapezium Area — Practice Paper 2 (10 Questions)
Paper 2 puts the three formulas inside one figure: split a composite shape first, and reverse the formula when a height is missing. Name the formula before you calculate.
Quick answer 10 questions, about 25 minutes. Items 05 and 06 work backwards to a height and item 07 is a composite shape; mark after finishing.
01 Paper details (check answers afterwards)
| Item | Detail |
|---|---|
| Questions | 10 questions |
| Suggested time | 25 minutes |
| Difficulty mix | Foundation 4 · Intermediate 3 · Challenge 2 · Error redo 1 |
| Chapter | Chapter: Primary 5 Maths: Areas of Triangles, Parallelograms and Trapeziums |
| Level | Primary 5 |
02 Questions (10 items)
- FoundationA triangle has base 9 cm and height 4 cm. Find its area.
- FoundationA parallelogram has base 15 m and height 6 m. Find its area.
- FoundationA trapezium has parallel sides 7 cm and 13 cm, height 5 cm. Find its area.
- FoundationA rectangle is 8 cm by 5 cm and is cut along a diagonal. Find the area of one triangle.
- IntermediateA trapezium has area 60 m² and parallel sides 4 m and 8 m. Find its height.
- IntermediateA triangle has area 0.36 m² and base 0.9 m. Find its height.
- IntermediateA shape is a 12 cm by 5 cm rectangle with a triangle on top (base 12 cm, height 4 cm). Find its total area.
- ChallengeA parallelogram flower bed has base 20 m and height 8 m. Four plants grow per m². How many plants in total?
- ChallengeA trapezium field has parallel sides 5 m and 9 m and height 6 m. Fertiliser is 0.5 kg per m². How many kg are needed?
- Error redoA trapezium has parallel sides 3 cm and 7 cm and height 4 cm. Find its area. (common slip: skipping ÷ 2 and answering 40 cm²)
03 Answers and one-line notes
| # | Answer | One-line note |
|---|---|---|
| 1 | 18 cm² | Base × height ÷ 2 = 9 × 4 ÷ 2. |
| 2 | 90 m² | No halving for a parallelogram: 15 × 6. |
| 3 | 50 cm² | (7 + 13) × 5 ÷ 2 = 100 ÷ 2. |
| 4 | 20 cm² | The triangle is exactly half the rectangle: 40 ÷ 2. |
| 5 | 10 m | Height = area × 2 ÷ (a + b) = 120 ÷ 12. |
| 6 | 0.8 m | Height = 0.36 × 2 ÷ 0.9 = 0.72 ÷ 0.9. |
| 7 | 84 cm² | Work in parts and add: 60 + 24. |
| 8 | 640 plants | Area is 160 m², then × 4. |
| 9 | 21 kg | Area is 42 m², then × 0.5. |
| 10 | 20 cm² | 10 × 4 = 40 is the parallelogram; a trapezium needs one more ÷ 2. |
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.
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.
