IS IT 87??????? I JUST WANNA MAKE SURE IM RIGHT!

2 answers:

6 0

Answer: yes or no who knows

Step-by-step explanation:

s2008m [1.1K]3 years ago

3 0

Answer:

Yes, you are correct, it is 87.

Step-by-step explanation:

Since all triangles add up to 180°, 51 + 42 + 87 = 180.

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