An 18-degree angle is classified as an acute angle, as acute angles measure less than 90 degrees. In some contexts, it may also be referred to as a specific angle, particularly in geometric constructions or trigonometric applications.
72 degrees.The complement is 18 degrees.72 + 18 = 9072 - 18 = 54
The complementary angle of 72 degrees is 18 degrees
Obtuse angle
An acute angle
straight angle.
Interior angle is 180 -18 = 162 degrees because there are 180 degrees on a straight line
72 degrees.The complement is 18 degrees.72 + 18 = 9072 - 18 = 54
The complementary angle of 72 degrees is 18 degrees
straight angle.
Obtuse angle
An acute angle
Exterior angle = 20 degrees Interior angle = 160 degrees
A 90-degree angle is commonly called a right angle.
an obtuse angle
revolution angle
An obtuse angle
The supplement of an angle is found by subtracting the angle from 180 degrees. Therefore, to find the supplement of 18 degrees, you calculate 180 - 18, which equals 162 degrees. This means that 18 degrees and 162 degrees together add up to 180 degrees, making them supplementary angles.