80/5 = 16
There are 5 diagonals in a pentagon
Two.
Add the numbers.
It will have 7 sides
It has a single number of diagonals.The number is 2 .
All real numbers can be divided by 5.
All numbers can be divided by 1.
All numbers can be divided by one.
There are 14 diagonals in a septagon. Another name for a septagon is heptagon. This is a seven-sided polygon. To figure the numbers of diagonals, you can use the formula 1/2 x [n x (n-3)], where n is the number of sides.
Numbers can't be divided by multiples. They get divided by factors. Factors go into numbers, numbers go into multiples.
All whole numbers can be divided by at least two numbers: 1 and the number itself. Additionally, all even whole numbers can be divided by two and all numbers ending in five can be divided by five.
American Airlines Flight 77.