Angles that are less than 90 degrees are called acute. They're angles with measures less then 90 but greater than 0. On the normal Cartesian coordinate plane, they lie in the first quadrant -- that is, in the upper-right hand side of the graph.
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Angles greater than 0 but less than 90 degres are acute angles
False because angles greater than 0 but less than 90 degrees are acute angles
A convex angle is any angle of 180 degrees or less. So all angles less than 90 degrees are certainly convex angles, but so are the angles between 90 and 180 degrees.
Acute angles are angles less than 90 degrees an obtuse angles are greater than 90 degrees
there are an infinite amount of angle that measure less than 90 degrees; however, there are only 89 whole angles that measure less that 90.