Mathematics OpenStudy (anonymous):

i am looking to figure out ratios in geometry. If the angle of a trianle are in the extended ratio 1:3:5, find their measures OpenStudy (saifoo.khan):

x+3x+5 = 180. OpenStudy (saifoo.khan):

Or, $\frac{x}{8} \times 180$ OpenStudy (saifoo.khan):

where x is the ratio. OpenStudy (anonymous):

ok - let me try that - give me a moment OpenStudy (saifoo.khan):

Sure. OpenStudy (anonymous):

why isn't it 5x OpenStudy (saifoo.khan):

typo.. sorry. that's 5x/ OpenStudy (anonymous):

so it should be set up as x + 3x + 5x = 180 OpenStudy (saifoo.khan):

Yes. OpenStudy (anonymous):

so then the next step is 4x + 5x = 180 and then it would be 9x = 180 and you divide it from there OpenStudy (saifoo.khan):

Correct. u will get. x = 20. so the smallest angle is 20. OpenStudy (anonymous):

so then you subtract that from 180 and get 160 for the other angles OpenStudy (saifoo.khan):

No. now. u know the value of two other angles. that is 3x and 5x. and you know the value of x for well. so, 3(x) = 3(20) = ? degrees/ And 5(x) = 5(20) = ? degress OpenStudy (anonymous):

so then i would get 60, 100, and 20. OpenStudy (saifoo.khan):

Wow, you got them right. :D OpenStudy (anonymous):

:) thank you so much for ur help. OpenStudy (saifoo.khan):

You welcome. OpenStudy (anonymous):

do u have time to help me with a quadrilateral? OpenStudy (saifoo.khan):

idk. i will see. if i can solve them for sure. OpenStudy (anonymous):

alright. it has one angle of x+20, another of x-50, third one x+2, the last is x OpenStudy (saifoo.khan): OpenStudy (anonymous):

ok. thanks again.

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