Math 6 · Unit 7: Exploring measures · Cambridge Primary Maths Stage 6

Questions

1. 1. A triangle has base 8 cm and height 5 cm. What is its area?

   • 13 cm²
   • 26 cm²
   • 20 cm²
   • 40 cm²
   Check

2. 2. A rectangle is 9 m by 4 m. What is its area?

   • 26 m²
   • 18 m²
   • 13 m²
   • 36 m²
   Check

3. 3. A right-angled triangle has sides 6 cm and 4 cm around the right angle. What is its area?

   • 24 cm²
   • 12 cm²
   • 10 cm²
   • 20 cm²
   Check

4. 4. A triangle has area 30 cm² and base 10 cm. What is its height?

   • 300 cm
   • 3 cm
   • 20 cm
   • 6 cm
   Check

5. 5. A rectangle has area 48 cm² and width 6 cm. What is its length?

   • 8 cm
   • 42 cm
   • 12 cm
   • 288 cm
   Check

6. 6. Which height do you use for a triangle's area?

   • any side
   • the perpendicular height (at right angles to the base)
   • the longest side
   • the slanted side
   Check

7. 7. A square of side 10 cm has a triangle cut off with area 15 cm². What area is left?

   • 25 cm²
   • 85 cm²
   • 115 cm²
   • 75 cm²
   Check

8. 8. The L-shape is a 10 × 6 rectangle with a 4 × 3 rectangle cut out of one corner. What is its area?

   • 72 square units
   • 12 square units
   • 48 square units
   • 60 square units
   Check

9. 9. A rectangle 5.5 cm by 2 cm has area …

   • 7.5 cm²
   • 10.5 cm²
   • 15 cm²
   • 11 cm²
   Check

10. 10. A triangle has base 12 m and height 7 m. What is its area?

    • 42 m²
    • 38 m²
    • 19 m²
    • 84 m²
    Check

11. 11. Two identical triangles make a rectangle of area 50 cm². What is each triangle's area?

    • 100 cm²
    • 25 cm²
    • 50 cm²
    • 12.5 cm²
    Check

12. 12. A garden 8 m by 5 m has a 2 m by 2 m pond. What area is grass?

    • 32 m²
    • 36 m²
    • 40 m²
    • 44 m²
    Check

13. 13. Perimeter of a rectangle 7 cm by 3 cm?

    • 14 cm
    • 21 cm
    • 20 cm
    • 10 cm
    Check

14. 14. A triangle's base is doubled and height stays the same. Its area …

    • halves
    • is four times bigger
    • stays the same
    • doubles
    Check

15. 15. A square has area 64 cm². What is its perimeter?

    • 8 cm
    • 16 cm
    • 32 cm
    • 64 cm
    Check