2018 3marks ACS P6 Paper2 SA2

P6 / ACS / 2018 / SA2 / Paper 2 – Q12 [3 marks]

Question

Michael uses identical shaded and unshaded triangles to form figures that follow a pattern as shown below.

(a) The table shows the number of shaded and unshaded triangles for the first three figures. Complete the table for Figure 4.
(b) A figure in the pattern has a total of 529 shaded triangles. What is the Figure Number?
(c) Another figure in the pattern has a total of 63 unshaded triangles. What is the total number of shaded and unshaded triangles in this figure?

Solution

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