Finding measures

LiamN

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Joined
Mar 19, 2018
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Geometry.jpg
Could anyone give me a step by step of how to complete this? The triangle to the right was not in my geometry book, I drew it up to make the question easier, if it does. Thanks. :)
 
View attachment 9292
Could anyone give me a step by step of how to complete this? The triangle to the right was not in my geometry book, I drew it up to make the question easier, if it does. Thanks. :)

View attachment 9292
What are your thoughts?

Please share your work with us ...even if you know it is wrong.

If you are stuck at the beginning tell us and we'll start with the definitions.

You need to read the rules of this forum. Please read the post titled "Read before Posting" at the following URL:

http://www.freemathhelp.com/for
 
View attachment 9292
What are your thoughts?

Please share your work with us ...even if you know it is wrong.

If you are stuck at the beginning tell us and we'll start with the definitions.

You need to read the rules of this forum. Please read the post titled "Read before Posting" at the following URL:

http://www.freemathhelp.com/for
Thanks for the reply. I don't really know where to start with this question, so any pointers on where to begin would be greatly appreciated.
 
in red triangle, find out the angle D.

View attachment 9292
Could anyone give me a step by step of how to complete this? The triangle to the right was not in my geometry book, I drew it up to make the question easier, if it does. Thanks. :)

assume the sides are 1 unit each. Find the two short sides of the red triangle. Use the law of cosine to find the length
of the 3rd side. Now, you know the sides of the red triangle, you can find the other two angles. Similarly, you can also find the angles in you question.
 
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