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Calculate the area of triangles using a formula · Grade 6 · E2.2

Name: ______________________

Date: ______________________

  1. 1

    A triangle has a base of 2 cm and a height of 6 cm. What is its area, in square centimetres?

    Warm-up
    base 2 cmh 6 cm

    Answer:

  2. 2

    A triangle has a base of 2 cm and a height of 9 cm. What is its area, in square centimetres?

    Warm-up
    base 2 cmh 9 cm

    Answer:

  3. 3

    A triangle has a base of 8 cm and a height of 8 cm. What is its area, in square centimetres?

    Warm-up
    base 8 cmh 8 cm

    Answer:

  4. 4

    A triangle has a base of 9 cm and a height of 9 cm. What is its area, in square centimetres?

    On level
    base 9 cmh 9 cm

    Answer:

  5. 5

    A triangle has a base of 13 cm and a height of 7 cm. What is its area, in square centimetres?

    On level
    base 13 cmh 7 cm

    Answer:

  6. 6

    A triangle has a base of 14 cm and a height of 8 cm. What is its area, in square centimetres?

    On level
    base 14 cmh 8 cm

    Answer:

  7. 7

    A triangle has a base of 24 cm and a height of 10 cm. What is its area, in square centimetres?

    Challenge
    base 24 cmh 10 cm

    Answer:

  8. 8

    A triangle has a base of 21 cm and a height of 20 cm. What is its area, in square centimetres?

    Challenge
    base 21 cmh 20 cm

    Answer:

  9. 9

    A triangle has a base of 30 cm and a height of 13 cm. What is its area, in square centimetres?

    Challenge
    base 30 cmh 13 cm

    Answer:

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Worksheet code: eyJzIjoic3BhdGlhbC1hcmVhLXRyaWFuZ2xlIiwiZCI6WzIxMDE3MzgyOTgsODI4MDA4MTUwLDE4MjQ0ODQwNTMsMTQ2NjAyNDUyLDEzNDI5MDEzNTEsMTU0MDQ1MDkxLDkwMTQ2OTE0NCwxMTkxMDM3MTcyLDE5ODEzNjA2NDldLCJ2IjoxfQ.41c29531fe43

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Answer key · Calculate the area of triangles using a formula

  1. 1.
    6 — Area = base × height ÷ 2 = 2 × 6 ÷ 2 = 6.
  2. 2.
    9 — Area = base × height ÷ 2 = 2 × 9 ÷ 2 = 9.
  3. 3.
    32 — Area = base × height ÷ 2 = 8 × 8 ÷ 2 = 32.
  4. 4.
    40.5 — Area = base × height ÷ 2 = 9 × 9 ÷ 2 = 40.5.
  5. 5.
    45.5 — Area = base × height ÷ 2 = 13 × 7 ÷ 2 = 45.5.
  6. 6.
    56 — Area = base × height ÷ 2 = 14 × 8 ÷ 2 = 56.
  7. 7.
    120 — Area = base × height ÷ 2 = 24 × 10 ÷ 2 = 120.
  8. 8.
    210 — Area = base × height ÷ 2 = 21 × 20 ÷ 2 = 210.
  9. 9.
    195 — Area = base × height ÷ 2 = 30 × 13 ÷ 2 = 195.