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larisa [96]
3 years ago
5

It says solve for the variable can you explain

Mathematics
1 answer:
Dahasolnce [82]3 years ago
5 0

Answer:b=39 degrees

Step-by-step explanation:

We know the whole angle is a 90 degree angle because of the right angle sign. So all we have to do is subtract 51 from 90, which is 39 degrees

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____________________

13                        65           78

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