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# Parallel Lines and Triangle

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In the diagram below, we have,$$\overline{ST}\parallel\overline{QR}$$$$\angle P= 40^\circ$$ and.$$\angle QST = 2\angle R+8^\circ$$ Find the measure of $$\angle STR$$ degrees.

Oct 5, 2018
edited by shreyas1  Oct 5, 2018
edited by shreyas1  Oct 5, 2018

#1
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Hi Shreyas

Tell you what.

I (or someone else) will probably have time to do this  a little later if you present it properly.

You can edit your original question since you are not actually changing it. You are just makeing it readable.

I'll show you how.

Here is a bit of your question.

$\overline{ST}\parallel\overline{QR}$

Depending on how your computer is set up this may present properly to you but it does not present properly to me or to most people.

1) you need to get rid of the dollar signs

\overline{ST}\parallel\overline{QR}

2) Then you need to copy it

3) then you need to open the Latex button that is in the ribbon.

4) then you need to paste it into the LaTex box and press return.

5) it should now present properly underneath.

$$\overline{ST}\parallel\overline{QR}$$

6) click out of the latex box and it should present properly now.

In the diagram below, we have  $$\overline{ST}\parallel\overline{QR}$$      etc

7) Do the same thing for all the other bits of latex code that is in the question.

If you cannot make this work then pester us until you have enough info to work it out.

It is important that you learn to do this and it is not very difficult.

Please no one answer this question until Shreyas repairs it.  She/he needs to learn how to present her/his questions properly.

Oct 5, 2018
edited by Melody  Oct 5, 2018
#2
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This question is actually much simpler than the others that you have presented.

Just use the basic angle rules for parallel lines and then concentrate on the little triangle at the top.

Maybe let angle

Oct 5, 2018
edited by Melody  Oct 5, 2018
#3
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I have edited the question, is this good enough

Oct 5, 2018
#4
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Yes that is MUCH better

Melody  Oct 5, 2018
#5
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ST is parallel to QR

detailed hints: you have to find the angles and know why they are what they are.

1) find angle PST in terms of x                           180-(2x+8)

2) Find angle PTS in terms of x                            x

3)  Solve for x

4)  Determine STR

You can ask for more help if you do not get a particular step but think about it first.

Oct 5, 2018
#7
+464
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Thank you so much Melody.

Oct 8, 2018