Area of a trapezium

Mark scheme and answers · Total marks: 30

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Question 1 [1 mark]

Mark scheme
  • M [1] — Use of ½(a + b)h or equivalent
  • A [1] — cao 52.5
  • A [1] — Correct units stated (e.g. m²)

Question 2 [1 mark]

Mark scheme
  • M [1] — Use of ½(a + b)h or equivalent
  • A [1] — cao 40
  • A [1] — Correct units stated (e.g. m²)

Question 3 [1 mark]

Mark scheme
  • M [1] — Use of ½(a + b)h or equivalent
  • A [1] — cao 44
  • A [1] — Correct units stated (e.g. m²)

Question 4 [1 mark]

Mark scheme
  • M [1] — Use of ½(a + b)h or equivalent
  • A [1] — cao 72
  • A [1] — Correct units stated (e.g. m²)

Question 5 [1 mark]

Mark scheme
  • M [1] — Use of ½(a + b)h or equivalent
  • A [1] — cao 40
  • A [1] — Correct units stated (e.g. m²)

Question 6 [1 mark]

Mark scheme
  • M [1] — Use of ½(a + b)h or equivalent
  • A [1] — cao 72
  • A [1] — Correct units stated (e.g. m²)

Question 7 [1 mark]

Mark scheme
  • M [1] — Correct use of dimensions from the grid in ½(a + b)h (or equivalent counting)
  • A [1] — cao 25 cm²

Question 8 [1 mark]

Mark scheme
  • M [1] — Correct use of dimensions from the grid in ½(a + b)h (or equivalent counting)
  • A [1] — cao 24 cm²

Question 9 [1 mark]

Mark scheme
  • M [1] — Correct use of dimensions from the grid in ½(a + b)h (or equivalent counting)
  • A [1] — cao 27 cm²

Question 10 [1 mark]

Mark scheme
  • M [1] — Correct use of dimensions from the grid in ½(a + b)h (or equivalent counting)
  • A [1] — cao 21 cm²

Question 11 [1 mark]

Mark scheme
  • M [1] — Correct use of dimensions from the grid in ½(a + b)h (or equivalent counting)
  • A [1] — cao 20 cm²

Question 12 [1 mark]

Mark scheme
  • M [1] — Correct use of dimensions from the grid in ½(a + b)h (or equivalent counting)
  • A [1] — cao 28 cm²

Question 13 [1 mark]

Mark scheme
  • M [1] — Rearrange ½(a + b)h or substitute correctly
  • A [1] — cao h = 6 cm

Question 14 [1 mark]

Mark scheme
  • M [1] — Rearrange ½(a + b)h or substitute correctly
  • A [1] — cao h = 4 cm

Question 15 [1 mark]

Mark scheme
  • M [1] — Rearrange ½(a + b)h or substitute correctly
  • A [1] — cao h = 5 cm

Question 16 [1 mark]

Mark scheme
  • M [1] — Rearrange ½(a + b)h or substitute correctly
  • A [1] — cao 13 cm

Question 17 [1 mark]

Mark scheme
  • M [1] — Rearrange ½(a + b)h or substitute correctly
  • A [1] — cao 16 cm

Question 18 [1 mark]

Mark scheme
  • M [1] — Rearrange ½(a + b)h or substitute correctly
  • A [1] — cao 12 cm

Question 19 [1 mark]

Mark scheme
  • M [1] — Rearrange ½(a + b)h or substitute correctly
  • A [1] — cao h = 6 cm

Question 20 [1 mark]

Mark scheme
  • M [1] — Rearrange ½(a + b)h or substitute correctly
  • A [1] — cao 6 cm

Question 21 [1 mark]

Mark scheme
  • M [1] — Rearrange ½(a + b)h or substitute correctly
  • A [1] — cao h = 7 cm

Question 22 [1 mark]

Mark scheme
  • M [1] — Rearrange ½(a + b)h or substitute correctly
  • A [1] — cao 2 cm

Question 23 [1 mark]

Mark scheme
  • M [1] — Rearrange ½(a + b)h or substitute correctly
  • A [1] — cao h = 4 cm

Question 24 [1 mark]

Mark scheme
  • M [1] — Rearrange ½(a + b)h or substitute correctly
  • A [1] — cao 10 cm

Question 25 [1 mark]

Mark scheme
  • M [1] — Rearrange ½(a + b)h or substitute correctly
  • A [1] — cao h = 6 cm

Question 26 [1 mark]

Mark scheme
  • M [1] — Rearrange ½(a + b)h or substitute correctly
  • A [1] — cao x = 6

Question 27 [1 mark]

Mark scheme
  • M [1] — Rearrange ½(a + b)h or substitute correctly
  • A [1] — cao x = 6

Question 28 [1 mark]

Mark scheme
  • M [1] — Rearrange ½(a + b)h or substitute correctly
  • A [1] — cao x = 6

Question 29 [1 mark]

Mark scheme
  • M [1] — Rearrange ½(a + b)h or substitute correctly
  • A [1] — cao x = 7

Question 30 [1 mark]

Mark scheme
  • M [1] — Rearrange ½(a + b)h or substitute correctly
  • A [1] — cao x = 11

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