2 years ago

Please help!!!!!! y=[?]°

Mathematics

1 answer:

coldgirl [10]2 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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