East
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Perpendicular lines meet at 90 degrees
On a compass, 90 degrees means due east. The other device called a compass is used to transfer distance and draw circles, but not to measure angles. It's most likely that the word problem you were looking at meant "east".
Acute - less than 90 degrees Right - exactly 90 degrees Obtuse - more than 90 degrees but less than 180 degrees
Obtuse.
An obtuse angle