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I want a way to solve this question​
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I want a way to solve this question​

I want a way to solve this question​-example-1
User Greg Giacovelli
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1 Answer

1 vote

Answer:

Explanation:


cos~L=(m^2+n^2-l^2)/(2mn) \\=(5^2+8^2-7^2)/(2*5*8) \\=(25+64-49)/(80) \\=(40)/(80) \\=(1)/(2) \\=cos 60\\

∠L=60°

User SMahdiS
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