Ask your own question, for FREE!
Mathematics 21 Online
OpenStudy (anonymous):

Geometry help? :) WILL FAN AND MEDAL!!!

OpenStudy (anonymous):

OpenStudy (danjs):

the sum of the exterior angles of a polygon witn N sides is: 360 degrees

OpenStudy (anonymous):

so would i use the S=(n-2)180??

OpenStudy (danjs):

no that is the sum of the interior angles , the exterior angles always add up to 360

OpenStudy (anonymous):

ohhhhh xP

OpenStudy (danjs):

u get it now?

OpenStudy (anonymous):

would I take one of the equations like 14x+6=360? or am I not thinking this right?

OpenStudy (lunymoony):

is A the "6x - 3" one?

OpenStudy (anonymous):

yeahhhh

OpenStudy (danjs):

A +B +C +D +E = 360

OpenStudy (danjs):

6x + 3 +4x + 8 +49 + 3x + 30 + 14x + 6 = 360

OpenStudy (anonymous):

so i would combine like terms?

OpenStudy (danjs):

27x + 96 = 360

OpenStudy (lunymoony):

wait, how did you get 96?

OpenStudy (anonymous):

okay thanks!!!! :) and combining like terms

OpenStudy (michele_laino):

@babygurl47672 Sorry is your result x=40/3

OpenStudy (michele_laino):

namely, the right result, please?

OpenStudy (anonymous):

hold up my quiz didn't save any of my answers

OpenStudy (michele_laino):

@babygurl47672 I used the formula for internal angle, namely sum of amplitude of internal angle=(n-2)*180, and I got for x this value: x=40/3, please check

OpenStudy (anonymous):

I will hold on! :)

OpenStudy (michele_laino):

@babygurl47672 Thanks!

OpenStudy (anonymous):

so x=10 right? jw

OpenStudy (danjs):

Whatever X is , you then need to sub that into angle A which is 6x-3

OpenStudy (anonymous):

I got that angle A=57

OpenStudy (michele_laino):

not properly, for example for first angle I have considered this: 180-(14x+6) and so on for other angles. In other words I have performed my calculus with internal angles not external angles

OpenStudy (michele_laino):

please check solution using amplitudes of internal angles @babygurl47672

OpenStudy (anonymous):

I got it right

Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!
Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!