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Mathematics 16 Online
OpenStudy (anonymous):

Given

OpenStudy (anonymous):

hero (hero):

That's it? That's all that's given?

OpenStudy (anonymous):

yes

hero (hero):

Oh, I see what it is now. Tell me this....is ECD obtuse or acute?

OpenStudy (anonymous):

obtuse

hero (hero):

Exactly. So what would be the most likely choice for the correct angle?

hero (hero):

By process of elimination...

OpenStudy (anonymous):

obtuse

hero (hero):

Yes, but which of the answer choice would be the correct one?

OpenStudy (anonymous):

131

hero (hero):

Excellent. Because it's obtuse, we know that 49 and 41 are automatically eliminated. Angle 180 degrees can only be a straight line. So therefore, the only other obvious choice is 131.

OpenStudy (anonymous):

thank you

hero (hero):

You're welcome

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