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Mathematics 19 Online
OpenStudy (anonymous):

Look at the hexagon shown in the attachment. What is the value of x? 85, 130, 140 or175

OpenStudy (anonymous):

OpenStudy (saifoo.khan):

Do you know the total interior angle of a hexagon?

OpenStudy (saifoo.khan):

All inner angles = total interior angles.

OpenStudy (anonymous):

does it add up to 360?

OpenStudy (saifoo.khan):

Not 360.

OpenStudy (anonymous):

what?

OpenStudy (saifoo.khan):

\[(n-1)*180\]this is the formula, where "n" are the number of sides.

OpenStudy (saifoo.khan):

So you have 6 sides, (6-1)* 180 5 *180 900

OpenStudy (anonymous):

i thought it was (n-2)*180

OpenStudy (saifoo.khan):

Therefore, x + x + 90 + x+ 10 + x+10 + 90 = 900

OpenStudy (anonymous):

i dont remember in my lessons the -1

OpenStudy (saifoo.khan):

Facepalm. you are correct.

OpenStudy (anonymous):

ok lol

OpenStudy (saifoo.khan):

(6-2) * 180 720

OpenStudy (anonymous):

and i was going to say thats not one the answer choices haha

OpenStudy (saifoo.khan):

x + x + 90 + x+ 10 + x+10 + 90 = 720

OpenStudy (saifoo.khan):

Now do it. :D

OpenStudy (anonymous):

then what do you do?

OpenStudy (saifoo.khan):

Solve for x. Then you will get the value for each angle.

OpenStudy (anonymous):

720 isnt one of the answers :/

OpenStudy (anonymous):

oh ha

OpenStudy (anonymous):

im a girl btw

OpenStudy (saifoo.khan):

Ops. lol. sorry. Solve this, x + x + 90 + x+ 10 + x+10 + 90 = 720

OpenStudy (anonymous):

x=130?

OpenStudy (saifoo.khan):

solving..

OpenStudy (saifoo.khan):

Yes.

OpenStudy (anonymous):

thats correct?

OpenStudy (saifoo.khan):

Yes !

OpenStudy (anonymous):

okay, thank you sir

OpenStudy (saifoo.khan):

LOL @sir.

OpenStudy (anonymous):

i have another question if you would be so kind as to help me with it i would be appreciative.

OpenStudy (saifoo.khan):

Throw it.

OpenStudy (anonymous):

yo. how did you solve for x?

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