Ask your own question, for FREE!
Mathematics 10 Online
OpenStudy (narissa):

help?

OpenStudy (narissa):

OpenStudy (vuriffy):

Hmm, I believe a 5-sided shape has a total of 540 degrees, you could subtract all the values you have already to find the x degree.

OpenStudy (danjs):

You remember how the sum of interior angles of polygons add up

OpenStudy (danjs):

A triangle has 180 degrees, each addition of another side to that will add 180 more for each side...

OpenStudy (narissa):

Yeah i think so. 180(5)

OpenStudy (vuriffy):

180(5-2) = 180(3) = 540.

OpenStudy (danjs):

The number of sides, say n, will have interior angles sum to (n - 2)*180

OpenStudy (vuriffy):

180(n-2) is the formula.

OpenStudy (narissa):

ah okay now i see where i messed up i kept getting 900 degrees

OpenStudy (vuriffy):

90+107+144+138 = 479. You may subtract 540 - 479 = x Your remaining degree which totals up the degrees to 540.

OpenStudy (narissa):

x=90 degrees okay thanks @Vuriffy and @DanJS

OpenStudy (vuriffy):

@narissa No, slow down.

OpenStudy (vuriffy):

The 90 degrees comes from the right angle, as you see in the shape, correct?

OpenStudy (narissa):

yes

OpenStudy (vuriffy):

x is a different value.

OpenStudy (narissa):

151?

OpenStudy (vuriffy):

All you have to do now is add of the other degrees which you get 479. The total is 540. 540 - 479 = x

OpenStudy (narissa):

oh 61

OpenStudy (vuriffy):

Yes, x = 61. Good job!

OpenStudy (narissa):

Thank you i need to write this down lol

OpenStudy (vuriffy):

Sure thing, anytime.

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!