3 years ago

How do we know the angle of 45 degrees is always equal to the square root of 2 over 2?

1 answer:

8 0

The question is not correct, you mean the the sine and cosine of 45 degrees is always square root 2 over 2.

Well you need to know how the sine and cosine are calculated. I would search in google for "sine and cosine in a unit circle". There is a very good Khan academy video that explains this in 10 minutes. Watch and learn :-)

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Darya [45]

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16 / 2 = 8

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dem82 [27]

150/500 = 75/250

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3 years ago

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