+0  
 
+2
6
4
avatar+180 

Find BC

 Dec 17, 2023
 #2
avatar+51 
0

I would suggest doubling the angle of 45 degrees so that you can apply the Pythagorean Thereom

 Dec 17, 2023
 #4
avatar+33614 
+2

Use the cosine rule.

 Dec 17, 2023

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