Question
The diagram shows toothpicks used to arrange the following patterns. The rest of the figures follow the same pattern. 

Figure 1 uses 18 toothpicks.
Figure 2 uses 28 toothpicks.
Figure 3 uses 40 toothpicks.

  1. How many squares are in Figure 8?
  2. How many toothpicks are used to make Figure 67?
4 m
(a)

Click button first when a symbol is required. X

(b)

Click button first when a symbol is required. X

The diagram shows toothpicks used to arrange the following patterns. The rest of the figures follow the same pattern. 

Figure 1 uses 18 toothpicks.
Figure 2 uses 28 toothpicks.
Figure 3 uses 40 toothpicks.

  1. How many squares are in Figure 8?
  2. How many toothpicks are used to make Figure 67?