N-gon

How many diagonals does a convex 30-gon have?

Final Answer:

x =  405

Step-by-step explanation:

C2(30)=(230)=2!(302)!30!=213029=435 n=30 x=(2n)n=43530=405



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You need to know the following knowledge to solve this word math problem:

combinatoricsplanimetricsUnits of physical quantitiesGrade of the word problem

 
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