acute: less than 90
right: 90
obtuse: greater than 90, less than 180
straight: 180
reflex: greater than 180, less than 360
There can be 10 obtuse angles. If there are no reflex angles there can by up to three acute angles (I think).
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Over 90 but under 180 degrees. any lower is a right angle or acute angle, and higher is a straight line or a reflex angle.
An ACUTE angle is any angle between, but NOT including, 0 to 90 degrees. 0 degrres ; no angle 90 degrees ; right angle. Angles between 90 and 180 degrees are OBTUSE Angles between 180 and 360 degrees are REFLEX.
It's a Reflex Angle. Many would think that it is obtuse, but obtuse angles go from 91-179 degrees, not 181-360.
An obtuse angle can be any angle over 90 degrees and below 180 degrees (anything over that is a reflex angle)
There are many such shapes. A circle is perhaps the most obvious.
An obtuse angle is a measurement of 91 degrees to 179 degrees. If it is 90 degrees, it is a right angle. If it is 1 degree to 89 degrees it is an acute. If it is 180 degrees it is a straight angle.
Anything less than 90 degrees. Over 90 degrees is an obtuse angle and anything under 90 degrees is an acute angle.
A regular star with n points has 2 interior angles of which n are acute and n are reflex.
An acute angle is any angle less than 90 degrees. Obtuse is any angle greater than 90 degrees.
A regular 5 sided pentagon has 5 equal interior obtuse angles of 108 degrees