Question

All acute angles measure less than 90 degrees.
What can you conclude by deductive reasoning based on the statement above?
A. If angle A is obtuse, then it measures more than 90 degrees.
B. If angle B is reflex, then it cannot measure less then 90 degrees.
C. If angle C is acute, then it measures less than 90 degrees.
D. If an angle measures 90 degrees, then it is a right angle.

Answer 1

Any angle that is less than 90° is an acute angle.

• Acute Angle : Any angle that is less than 90° is an acute angle.

• Right Angle : If the angle formed between two rays is exactly 90° then it is called a right angle.

• Obtuse Angle : Any angle that is greater than 90° but less than 180° is an obtuse angle.

• Reflex Angle: An angle that is greater than 180° and less than 360° is called a reflex angle.

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