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ankoles [38]
3 years ago
12

What is measure of angle R?

Mathematics
1 answer:
Aleonysh [2.5K]3 years ago
4 0
You have three options, all of them work.
sin(angle) = opposite/hypotenuse
cos(angle) = adjacent/hypotenuse
tan(angle) = opposite/adjacent

You are already given the length of the lines, so all you can is to take the inverse of whatever you choose to get the angle.

sin^{-1} (5/13) = 22.62

cos^{-1} (12/13) = 22.62

tan^{-1} (5/12) = 22.62


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