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Two angles of a triangle have a ratio of $5$ to $7$. The third angle has a measure of $60$ degrees. What is the measure in degrees of the smallest angle in the triangle?

 Mar 17, 2024
 #1
avatar+128406 
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The two angles sum to 120

 

So.....the measure of the smallest angle is

 

5/ (5 + 7)  * 120    =

 

5 / 12  *   120   =

 

60°

 

cool cool cool

 Mar 18, 2024

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