Flight Service Manager at American Airlines, In-flight operations supervisor at US Airways.Past. Flight Attendant at US Airways, English Teacher at Guil Elementary School English Program, English Teacher at LCI Kids Club, Regional...sistente de la Gerencia General at Marsh Rehder, Flight Service Manager at American Airlines, Flight Service Administrative Assistant at...
Acute Angle Definition. An acute angle is an angle whose degree measure is greater than 0 but less than 90. In the above diagram angle 1 is seen smaller than the right angle marked by a square sign. Hence it is an acute angle. Similarly, the angle marked as 2 is called the complementary angle of angle 1.
Acute and obtuse angles are smaller and respectively greater than right. Usually, obtuse angles are taken to be smaller than straight, in which case the angles that exceed the straight angle are said to be reflex. A reflex angle so big as to have its two sides overlap is full. (A dynamic illustration is available elsewhere.) The sum of two acute angles is either acute, right or obtuse. The sum of an obtuse and an acute angle, or of three acute angles, may be reflex. The existence (or admittance) of reflex angles kills all hope that the interior of an angle may be determined from its sides in a natural way. Handpicking the interior and appending it to the definition almost solves the problem.