MATHS 一條中5
2009-10-09 6:00 am
回答 (1)
2009-10-09 6:18 am
✔ 最佳答案
ai) the perimeter of the nth figure = 4 + 6(n-1)The perimeter of the 100 th figure = 4 + 6(100-1) = 598
aii) The sum of the perimeter of the first 100 figures
= [4 + 4 + 6(100-1)] * 100/2
= 30100
b)The area of the nth figure = n^2
The area of F100 = 100^2 = 10000
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