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Mathematics 23 Online
Mzshay438:

Find the missing angle.

Mzshay438:

Thiccmamas120:

obtuse angle if im not misstaken

Mzshay438:

It might be

Angle:

Hello @Mzshay438 Your question is using the Exterior Angle Theorem See the formula here: https://www.mathsisfun.com/geometry/triangle-exterior-angle-theorem.html

Thiccmamas120:

because is a bigger angle and goes over 90 %

Angle:

The idea we want to use is that the missing angle described in your picture is going to equal 35 + 95

JammarWalker:

To find the missing angle you have to add up the angles given. Then subtract from 180.

Mzshay438:

So you add them up

Angle:

correct

Mzshay438:

And its equal to something

aevans182:

Yes, the angles in a triangle add up to 180

JammarWalker:

\(\color{#0cbb34}{\text{Originally Posted by}}\) @JammarWalker To find the missing angle you have to add up the angles given. Then subtract from 180. \(\color{#0cbb34}{\text{End of Quote}}\) Then you shall take the new number and subtract it from 180.

Mzshay438:

Ok

Mzshay438:

I think it's 50

JammarWalker:

\(\color{#0cbb34}{\text{Originally Posted by}}\) @JammarWalker \(\color{#0cbb34}{\text{Originally Posted by}}\) @JammarWalker To find the missing angle you have to add up the angles given. Then subtract from 180. \(\color{#0cbb34}{\text{End of Quote}}\) Then you shall take the new number and subtract it from 180. \(\color{#0cbb34}{\text{End of Quote}}\) Hope this helps! 😁

Mzshay438:

Is it 50

Angle:

then what is 180 - 50 = ?

Angle:

no, the angle with the question mark is not 50

Mzshay438:

\(\color{#0cbb34}{\texi add up 35+95 and got 130, and then I subtract 180-130 and got 50

JammarWalker:

\(\color{#0cbb34}{\text{Originally Posted by}}\) @Angle no, the angle with the question mark is not 50 \(\color{#0cbb34}{\text{End of Quote}}\) Yea, I just saw that that's why I deleted the answer given.

Mzshay438:

\(\color{#0cbb34}{\text{Originally Posted by}}\) @JammarWalker \(\color{#0cbb34}{\text{Originally Posted by}}\) @Angle no, the angle with the question mark is not 50 \(\color{#0cbb34}{\text{End of Quote}}\) Yea, I just saw that that's why I deleted the answer given. \(\color{#0cbb34}{\text{End of Quote}}\) Ok

Angle:

Using the Exterior Angle Theorem: https://www.mathsisfun.com/geometry/triangle-exterior-angle-theorem.html your answer is equal to 35 + 90

Mzshay438:

It's 35 and 95 how you got 90

Angle:

that's a typo, my bad

Angle:

35 + 95 = your answer

Mzshay438:

So it's 130

Angle:

correct

Mzshay438:

That's right ain't it

Angle:

yes, 130 is correct

aevans182:

Wait what? wouldnt it be 50 because you have to add the other two angles and then subtract it from 180

Angle:

50 is the interior angle called RPQ this problem is looking for the measure of angle QPG

aevans182:

ohhhhhh I see what angle its talking about I understand now sorry it is 130

Mzshay438:

When I add up 130 35 and 95 it add up to 260

Mzshay438:

So when I add up 50 35 and 95 it add up to 180

Angle:

what are you doing? 130 is your answer

aevans182:

That would be the inside angles added up, the question asked for the outside angle

Mzshay438:

Ok thank you

Angle:

1 attachment
aevans182:

Yep!

Mzshay438:

Ok gotcha

aevans182:

Thank you @angle

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