answersLogoWhite

0

1oo diagonals, because 1 side has 10 diagonals so 10 sides (10x10) = 100 diagonals! This is the correct answer..... a decagon has 35 diagonals. The equation for the this is D=n(n-3)/2 meaning diagonals = number of sides (N) multiplied by number of sides minus 3. and that number over 2. D=10(10-3)/2

User Avatar

Wiki User

15y ago

Still curious? Ask our experts.

Chat with our AI personalities

JudyJudy
Simplicity is my specialty.
Chat with Judy
EzraEzra
Faith is not about having all the answers, but learning to ask the right questions.
Chat with Ezra
RafaRafa
There's no fun in playing it safe. Why not try something a little unhinged?
Chat with Rafa
More answers

A diagonal line of a polygon is a line that joins any two vertices not already joined by a side.

A polygon with n sides has n(n-3)/2 diagonals

→ a hexagon has 6(6-3)/2 = 6 × 3 ÷ 2 = 9 diagonals

User Avatar

Wiki User

7y ago
User Avatar

35

User Avatar

Wiki User

12y ago
User Avatar

Add your answer:

Earn +20 pts
Q: How many diagonals does a decagon have?
Write your answer...
Submit
Still have questions?
magnify glass
imp