Number three
- Thread starter Piaru
- Start date
Dr.Peterson
Elite Member
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- Nov 12, 2017
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I would draw a horizontal line through A, which would form two right triangles with hypotenuses AB and AC. Find the angle at A for each triangle, and add them to get angle CAB.
Next time you might want to translate the entire question; I'm assuming it is obvious what the numbers refer to, but I like to be sure.
Next time you might want to translate the entire question; I'm assuming it is obvious what the numbers refer to, but I like to be sure.
Jagulba
Junior Member
- Joined
- Aug 29, 2019
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- 51
Ok, so consider the side which point A is on it. Draw 2 lines perpendicular from C and B to this side (which is of course parallel to the other side since this is a rectangle)
So you end up with 2 new triangles
Can you calculate all their angles using cosin and sin ? 2 of these angles (the sum of them) will help you find the angle you want