The crossword solution for the term 'IT MAY BE ACUTE OR OBTUSE' is ANGLE. An ANGLE is a figure formed by two rays, or lines, that share a common endpoint. Angles can be measured in degrees and are classified as either acute, obtuse, right, or straight. Acute angles measure less than 90 degrees, obtuse angles measure more than 90 degrees, right angles measure exactly 90 degrees, and straight angles measure 180 degrees.