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-7 degrees below zero is 7 degrees above zero.-7 degrees below zero is 7 degrees above zero.-7 degrees below zero is 7 degrees above zero.-7 degrees below zero is 7 degrees above zero.
The cosine of 90 degrees is zero.
No. As the angle increases from zero to 90 degrees,its sine increases from zero to '1'.
An angle above 90 but less than 180 degrees is an obtuse angle An angle above 180 degrees is a reflex angle
It is an acute angle that is greater than 0 but less than 90 degrees