Find the perimeter of a figure containing n squares.
Answer to Problem 20QC
The perimeter of a figure containing n squares:
Explanation of Solution
Given:
Perimeter of 1 square is 4 ; Perimeter of 2 squares is 6
; Perimeter of 3 square is 8
Concept Used:
This is an arithmetic sequence.
1st term = 4, 2nd term = 6, 3rd term = 8
Calculation:
Formula for nth term of arithmetic sequence is:
Where
The perimeter of a figure containing n squares:
Thus, the perimeter of a figure containing n squares:
Chapter 9 Solutions
Algebra 1
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