Mathematics
8bithelix:

Math help pls: 1.http://prntscr.com/l6roy3 2.http://prntscr.com/l6rp0h 3. http://prntscr.com/l6rppt 4.http://prntscr.com/l6rpyz

5 months ago
563blackghost:

Looking at your diagram you see that $$\bf{\angle TRY}$$ is vertical from $$\bf{\angle QRW}$$ this means by Vertical Angle Theorem they are congruent. $$\large\bf{\angle TRY = \angle QRW}$$ Substitute. $$\large\bf{x+16=4x-5}$$ What does x equal?

5 months ago
8bithelix:

7

5 months ago
563blackghost:

Correct so x = 7. This answer part A. ~~ Now to find $$\bf{\angle TRY}$$ you would plug in 7 into its equation. $$\large\bf{ \angle TRY = 7 + 16}$$ What does $$\bf{\angle TRY}$$ equal?

5 months ago
8bithelix:

23

5 months ago
563blackghost:

Correct. So that answers part B. Now if you view your diagram you see that $$\bf{\angle TRQ}$$ lies on the same line as $$\bf{\angle TRY}$$ this means that these two angles are supplementary meaning they create a 180 degree angle. So to find $$\bf{\angle TRQ}$$ you would subtract 180 and 23. $$\large\bf{\angle TRQ=180-23}$$

5 months ago
563blackghost:

What does $$\bf{\angle TRQ}$$ equal?

5 months ago
8bithelix:

im doing 3 things at once, im sorry. <TRQ=157

5 months ago
563blackghost:

It's okie, take your time. You are correct. That answers part C. Your question says A-D but I only see from A-C for this problem.

5 months ago
8bithelix:

give me a moment to look through the doc

5 months ago
8bithelix:

According to my teacher its only A-C not A-D, there was a typo

5 months ago
563blackghost:

ah i see, on to the next one, give meh a sec

5 months ago
563blackghost:

I'm still trying to think of a good explanation for 2, so let's do 3. There are 3 known postulates in which you can prove a triangle: AAS, SAS, and SSS Lets look at the first one you can see that we have a pair of angles that are congruent, as well as congruent right angles, we are not given any other info, since aren't told about any sides being equal to each other by length we do not have enough info so it would be NA. Try and do the others and ill check them if they are right for you.

5 months ago
8bithelix:

http://prntscr.com/l6sde9 am terrible at this.

5 months ago
8bithelix:

@563blackghost

5 months ago
8bithelix:

@Vocaloid

5 months ago
8bithelix:

@JustSaiyan

5 months ago
JustSaiyan:

As I said before and deleted, I only do my own math. I do not do it for others.

5 months ago
8bithelix:

5 months ago
8bithelix:

5 months ago
8bithelix:

only question 3 and 4

5 months ago

3 has three angles as congruent, not sides. 4 has three sides as congruent.

5 months ago

Oh I was referring to the 3rd and 4th figures in your last posted screenshot. This is why I encourage people to not have so much in one question, it is quite unorganized and can be confusing.

5 months ago

I am not sure you understand these laws. I would encourage you to review them in your lesson or here: https://www.onlinemathlearning.com/prove-triangles-congruent.html

5 months ago
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