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If x is an acute angle, then what is true for x?(a) x = 90°(b) 0° < x < 90°(c) 90° < x < 180°(d) 180° < x < 360°The question was asked in class test.I'm obligated to ask this question of Lines and Angles Definitions and Basic Terms topic in section Lines and Angles of Mathematics – Class 9

Answer»

The correct answer is (B) 0° < x < 90°

To explain: An ACUTE ANGLE always measures between 0° and 90°, therefore the value of an acute angle is always between 0° and 90°. It is shown in the DIAGRAM below in which ∠POQ is an acute angle whose value is LESS than 90°.



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