Track quiz
Eight ideas, eight checks. Read the table first.
| Idea | How it goes |
|---|---|
| Counting squares | Whole squares, plus what the part squares hold. |
| A rectangle | Length × width, whole numbers or not. |
| A parallelogram | Base × the height, measured square across. |
| A triangle | Half of base × the height. |
| The height | Square across, from the base to the far corner. |
| A trapezium | Average the two parallel sides, × the height. |
| Awkward outlines | Split into simple shapes, then add or take away. |
| Square units | Use the side change twice: 100 × 100. |
A shape on centimetre paper fills 14 whole squares. It reaches into 9 more, holding 4.5. What is its area?
A verandah is 7 m long and 3.5 m wide. What area does it cover?
A parallelogram has a base of 12. Its parallel sides are 5 apart. Its slanted side is 7. What is its area?
A triangle has a base of 14. Its far corner is 5 from the base line. What is its area?
A triangle has a base of 6. Its other two sides are both 5. Its height is 4. What is its area?
A trapezium has parallel sides of 9 and 15. They are 6 apart. What is its area?
A four-sided shape has a diagonal of 10. The other corners are 3 and 4 from it, on opposite sides. What is its area?
A floor is 3 square metres. How many square centimetres is that?
Your book calls this Part II, Chapter 7. Its name is Area. Use the height habit there.
Next: We Distribute, Yet Things Multiply.