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Mathematics 25 Online
Comerpickles:

http://prntscr.com/hp3wsu

Shadow:

We are going to need an image for this one.

Comerpickles:

There is no image for it

Shadow:

An eleven sided polygon is a hendecagon. The interior angle of a hendecagon is 147.27. If that is the interior angle, then what must be the exterior angle?

Comerpickles:

Hmmmmm, you got me in a box here

Shadow:

Well, how do you solve for interior and exterior angles?

Comerpickles:

Interior, add up to 180

Shadow:

So if you know the interior...

Comerpickles:

Welp, its exterior so I guess we subtract?

Shadow:

Here is the rule: An interior angle plus it's exterior angle equals 180 degrees (or a straight line) \[InteriorAngle + ExteriorAngle = 180\]

Comerpickles:

Okie

Comerpickles:

So how do I determine this?

Comerpickles:

I mean there's no image so unfortunately I have to try something different

Shadow:

No...if you know the interior angle, then that means there is only one unknown in our equation. The exterior angle, which is what our problem is asking for.

Comerpickles:

So I subtract 147.27 from 180?

Shadow:

Yes

Comerpickles:

360/11?

Shadow:

What did you get for a decimal? As this is what the question is asking for.

Comerpickles:

32.7

Shadow:

There you go

Comerpickles:

Ohhhh XD

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