It is an angle whose measure is between 90 and 180 degrees.
Obtuse
180-105 = 75
Acute Angle: An angle whose measure is less than 90 degrees and greater then zero degrees is called an acute angle.Right Angle: An angle whose measure is 90 degrees is called right angle.Obtuse Angle: An angle whose measure is greater than 90 degrees and less than 180 degrees is called obtuse angle.Straight Angle: An angle whose measure is 180 degrees called a straight angle.Reflex Angle: An angle whose measure is greater than 180 degrees and less than 360 degrees is called a reflex angle.Complete Angle: An angle whose measure is 360 degrees is called a complete angle.Zero Angle: If the measure of an angle is zero it is called a zero angle.
It is 180 -64 = 116 and 64 plus 116 = a supplementary angle of 180 degrees
An angle whose measure is exactly 180 degrees is a straight angle.
It is an angle whose measure is between 90 and 180 degrees.
Obtuse
acute angles.
An angle whose degree measure is between 0 and 90 is an acute angle. An angle whose degree measure is between 90 and 180 is an obtuse angle. These are basic properties of geometry.
An obtuse angle
an angle whose measure is between 90 and 180
every 'obtuse' angle 135 degrees is the angle between 90 and 180. (91, 136, and 179 are a few others.)
straight angle or line.
An angle whose measure greater than 90 but less than 180 is an obtuse angle.
Given an angle A whose measure is in the range [0, 180] degrees, the supplementary angle to A is the angle B such that the measure of A + B = 180 degrees.
180-105 = 75