Permutations are for lists (order matters) and Combinations are for groups (order doesnt matter)
<span>Each Interior Angle = <span>(<span>(Number of Sides -2) • 180 degrees<span>)<span> ÷ (Number of Sides)
Solving for number of sides
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<span>Each Interior Angle / 180 = <span>(N -2) <span>/ (N)
144 / 180 = (n-2) / n
144 * n = 180n -360
360 = 36 n
n = 10 the number of sides
Source:
http://www.1728.org/polygon.htm
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X= 60 and y = 120
As we can tell x and y add up to 180 as angles on a line are equal to 180 and we know the value of x as angles in a triangle add up to 180
You take alll the answers and just divide each one
Answer:
![2.6373 \times 10^4](https://tex.z-dn.net/?f=2.6373%20%5Ctimes%2010%5E4)
Step-by-step explanation:
The starting number must always be in the ones' place, it cannot be in the tens place. And it must be between 1 and 10.