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Joe cut out a decagon. His sister asked him to draw diagonals on it. How many diagonals will he make?

Sagot :

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)