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2 marksNumber Sequences and Rules

CSEC Mathematics · May/June 2012 · Paper 2 · Question 8(a)

The diagram shows the first three figures in a sequence of isosceles triangles made of rubber bands stretched around pins on a geo-board. The pins are arranged in rows and columns, one unit apart.

On the answer sheet provided, draw the fourth figure (Figure 4) in the sequence.

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Other parts of this question

  1. 8(b)(i)Study the patterns in the table below, and on your answer sheet, complete the row numbered (i) for Figure 4.[2 marks]
  2. 8(b)(ii)Study the patterns in the table below, and on your answer sheet, complete the row numbered (ii) where the Area of Triangle is 100.[2 marks]
  3. 8(b)(iii)Study the patterns in the table below, and on your answer sheet, complete the row numbered (iii) for Figure 20.[2 marks]
  4. 8(b)(iv)Study the patterns in the table below, and on your answer sheet, complete the row numbered (iv) for Figure n.[2 marks]

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