Answer:
35 diagonals
Step-by-step explanation:
no. of diagonals in a polygon
[tex] = \frac{n}{2} (n - 3)[/tex]
, where n is indicated as the number of sides of polygon
D of decagon (decagon has 10sides
[tex] = \frac{10}{2} (10 - 3) \\ = 5(7) \\ = 35[/tex]
(hope this helps)
