Math 2017 Question 26
Question 26
A pattern is formed using dots as shown below.
How many dots will form Figure 6? (2 marks)
Answer
28 dots
Explanation
Figure 1 = 3 dots
Figure 2 (add 3) = 3+3 = 6 dots
Figure 3 (add 4) = 6 +4 = 10 dots
Figure 4 (add 5) = 10+5 = 15 dots
Figure 5 (add 6) = 15+6 = 21 dots
Figure 6 (add 7) = 21+7 = 28 dots
Alternatively draw Figure 5 and Figure 6 out and count the dots. Take note that it asked for the number of dots in Figure 6
