how many internal diagonals does a pentagon (five sided polygon) have?
Answers:
A) 5	B) 8	C) 9	D) 10	E) 12
Number of diagonals in any polygon can be found using this formula: n(n-3)/2   Here n = 5   No. of diagonals = 5(5 - 3)/2   = 5   5ns 5
<result>A</result>
how many internal diagonals does a pentagon (five sided polygon) have?