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Area & Perimeter of Triangles, Parallelograms and Trapezia (Year 8)

Free printable UK Year 8 (Key Stage 3) maths worksheet: find the area and perimeter of triangles, parallelograms and trapezia using the correct formula for each shape.

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Grade 7 · Math worksheet
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Math

Area & Perimeter of Triangles, Parallelograms and Trapezia

Find the area or perimeter of each triangle, parallelogram or trapezium, using the correct formula.

  1. 1.
    A triangle has a base of 20 cm and a height of 5 cm. Find its area.
  2. 2.
    A triangle has a base of 20 cm and a height of 12 cm. Find its area.
  3. 3.
    A triangle has sides of length 18 cm, 13 cm and 12 cm. Find its perimeter.
  4. 4.
    A triangle has sides of length 20 cm, 18 cm and 13 cm. Find its perimeter.
  5. 5.
    A parallelogram has a base of 20 cm and a height of 8 cm. Find its area.
  6. 6.
    A parallelogram has a base of 12 cm and a height of 9 cm. Find its area.
  7. 7.
    A parallelogram has a base of 6 cm and a height of 9 cm. Find its area.
  8. 8.
    A parallelogram has sides of length 9 cm and 5 cm. Find its perimeter.
  9. 9.
    A trapezium has parallel sides of length 13 cm and 5 cm, and a height of 4 cm. Find its area.
  10. 10.
    A trapezium has parallel sides of length 9 cm and 16 cm, and a height of 7 cm. Find its area.
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