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0
261
1
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https://ibb.co/ynQ8dZt

 

 

link to the question 

 Apr 25, 2021
 #1
avatar+114812 
+1

For 9 use cosing rule.

 

For 8 use cosine rule to find the missing side then sine rule to find one angle. Then use angle sum of a triangle.

 Apr 25, 2021

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