Quelpr
2 marksNumber Sequences and Rules

CSEC Mathematics · 2003 (Specimen) · Paper 2 · Question 8(d)

Calculate the area of the 12th triangle.

This question uses a figure or table from the paper — you'll see it when you practise.

The mark scheme is shown once you've answered.

Practise this question

Other parts of this question

  1. 8(a)Draw the FOURTH triangle of the set on the grid provided on the answer sheet.[2 marks]
  2. 8(b)Copy and complete the table for the 3rd, 4th, 5th, and 6th triangles.[4 marks]
  3. 8(c)(i)Write a rule describing the sequence of numbers in Column 2 (Number of Dots on Perimeter).[1 mark]
  4. 8(c)(ii)Write a rule describing the sequence of numbers in Column 3 (Number of Dots Inside Triangle).[2 marks]

More practice: the rest of this paper · more Number Sequences and Rules questions · all CSEC Mathematics past papers