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jmc

geometry junior

Problem

The measure of angle is 40 degrees. If ray is rotated 480 degrees about point in a clockwise direction, what will be the positive measure of the new acute angle , in degrees?

problem
Solution
A rotation by 480 degrees is the same as one by . The first degrees of this rotation will be used to decrease the angle to degrees, leaving unused degrees, so our answer is degrees.
Final answer
80