I need help with a geometry problem

label Mathematics
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Nov 7th, 2015

Thank you for the opportunity to help you with your question!

cos B = 0.625 meaning arccosB = 51.32 so B angle = 51.32 and A angle is 180-90-51.32 = 38.68 

so the largest acute angle is 51.32 which means C . 51.3 is the correct answer

Please let me know if you need any clarification. I'm always happy to answer your questions.
Nov 7th, 2015

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Nov 7th, 2015
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Nov 7th, 2015
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