Maybe:
Cos90=0
I’m not sure of the question here
You can round 976 to 1000 and 522 to 500. So it would be
1000 - 500 = 500. The answer you would get after subtracting 976-522 would be more than 400 if you round it.
Answer:
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▹ Answer
<em>12</em>
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▹ Step-by-Step Explanation

Hope this helps!
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Answer:
79 degrees
Step-by-step explanation:
First, you want to find the interor angles.
Since there are 180 degrees in a triangle...180-(27+52)=101 degrees
And the bottom line is a straight line so it's equal to 180 degrees as well.
180-101=79 degrees