How many sides of the polygon, if its first term 120 and common difference 5
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0
Answer:
polygon has 25 side
Step-by-step explanation:
it's your correct answer
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Answered by
1
Answer:
polygon has 23 sides
Step-by-step explanation:
a=120 ,d=5
a n = a+(n-1)d
a n = 120+(n-1)5
a n = 120+5n-5
a n = 115+5n
5n = 115
n= 115/5
n= 25
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