Question
Usha uses rods to form figures that follow a pattern. The first five figures are shown.
  1. The table shows the number of rods used for each figure. What is the number of sticks used for Figure 7?
  2. What is the difference in the number of rods Usha would use for Figure 17 and Figure 19?
  3. In which figure number would Usha use 50 rods?
4 m
(a)

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(b)

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(c)

Click button first when a symbol is required. X

Usha uses rods to form figures that follow a pattern. The first five figures are shown.
  1. The table shows the number of rods used for each figure. What is the number of sticks used for Figure 7?
  2. What is the difference in the number of rods Usha would use for Figure 17 and Figure 19?
  3. In which figure number would Usha use 50 rods?