+0  
 
0
85
7
avatar+23 

The problem says this; In triangle CDE, m

If you could also help me with the next one, it states; In triangle PQR, p = 56, r = 17, and m

Thank you in advance!

ZinniaHeliantheae  May 18, 2017
Sort: 

7+0 Answers

 #1
avatar+89767 
+1

Your question/s are incomplete.

Melody  May 18, 2017
 #2
avatar+23 
+1

That's weird, I had all the numbers in there? I'll edit it to put them back in I guess I've never seen it do that

ZinniaHeliantheae  May 18, 2017
 #3
avatar+89767 
0

We have a ghost on this site. "The ghost of web2"

He has been playing games again :)

Melody  May 18, 2017
 #4
avatar+23 
+2

Since it decided to delete some of my numbers:

Question 1) In triangle CDE, the measure of angle C is equal to 52, the measure of angle D is equal to 17, and e is equal to 28.6. Find c to the nearest tenth.

Question 2) In triangle PQR, p is equal to 56, r is equal to 17, and the measure of angle Q is equal to 110. Find q to the nearest tenth.
Don't know what happened with the original post, sorry about that!

ZinniaHeliantheae  May 18, 2017
 #5
avatar+89767 
+2

First you need to draw the trinagle/s.  Do you now how to do that?

 

Question 1) In triangle CDE, the measure of angle C is equal to 52, the measure of angle D is equal to 17, and e is equal to 28.6. Find c to the nearest tenth.

You will need to find angle E and then use the sine rule.

 

Question 2) In triangle PQR, p is equal to 56, r is equal to 17, and the measure of angle Q is equal to 110. Find q to the nearest tenth.
Draw the pic and decide if you can use the sine rule or the cosine rule.

you do not need to find anything else first.  

 

 

REmember:

The sine rule uses two sides and their opposite angles.  You need to have three of these and then you can find the 4th one.

 

The cosine rule uses  3 sides and 1 angle.  You must have three of these and then you can find the 4th.

 

Perhaps your real problems is that you do not know how to label / draw the triangles.

Do you need me to help you with that?

 

Here is a video for you to watch :) 

https://www.youtube.com/watch?v=bDPRWJdVzfs

Melody  May 18, 2017
 #6
avatar+23 
+2

Oh wow, I feel really dumb! My real problem was that this is a final study guide and I forgot that non-right angled triangles have law of cosine/sine instead of just using regular trigonometry. It's been a long year, thank you so much for your help!

ZinniaHeliantheae  May 18, 2017
 #7
avatar+89767 
+1

You are very welcome. I hope you do well in your upcoming tests :)

Melody  May 18, 2017

6 Online Users

We use cookies to personalise content and ads, to provide social media features and to analyse our traffic. We also share information about your use of our site with our social media, advertising and analytics partners.  See details