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kenny6666 [7]
3 years ago
8

Please help!!!!!! y=[?]°

Mathematics
1 answer:
coldgirl [10]3 years ago
7 0

Answer:

Since there are already 2 angles shown, which are 48 and 90 (indicated by the square in the bigger triangle, we can set up an equation.

48 + 90 + y = 180

138 + y = 180

-138 + 138 + y = 180 - 138

y = 42°

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