SOLUTION: For what values of d is an angle with measure 3.6d an acute angle? Please explain and solve.

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Question 5084: For what values of d is an angle with measure 3.6d an acute angle? Please explain and solve.
Answer by rapaljer(4671) About Me  (Show Source):
You can put this solution on YOUR website!
An acute angle is an angle whose measure is less than 90 degrees.

If 3.6 d is an acute angle, then
3.6+%2Ad+%3C+90 degrees

To solve for d, you must divide both sides by 3.6:
+%283.6%2A+d%29%2F3.6+%3C+90%2F3.6+
d+%3C+900%2F36
d< 25 degrees

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