Shape size
If a pattern shows shapes increasing in size by one unit each time, and the third shape has 4 units, how many units does the fifth shape have?
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Let’s break it down:
ReplyDeleteThe size increases by 1 unit each time, so this is an arithmetic sequence.
The third shape = 4 units
Since it increases by 1 unit per step, we can work backwards to find the earlier shapes:
Third shape = 4
Second shape = 4 - 1 = 3
First shape = 3 - 1 = 2
Now continue the pattern forward:
Fourth shape = 4 + 1 = 5
Fifth shape = 5 + 1 = 6