Which of the following is a measure of an obtuse angle?
A. 40 degrees
B. 100 degrees
C. 90 degrees***
D. 180 degrees
I am most certain it is C?
nope C is a right angle
obtuse means greater than 90. So, (b)
D is a straight angle.
Steve is wrong! The correct answer is B!
Hope this helped!
So it is B, right?
Miley/Raven -- it's confusing when you use two or more different names.
Steve told you the answer.
Is it b?
Yes, you are correct. Option C, 90 degrees, is not a measure of an obtuse angle. An obtuse angle is an angle that measures between 91 degrees and 179 degrees. In this case, 90 degrees is actually a measure of a right angle, which is a different type of angle.
To determine if an angle is obtuse, you can compare its measure to the measure of a right angle (90 degrees) and an acute angle (less than 90 degrees). If the angle measures greater than 90 degrees but less than 180 degrees, it is classified as an obtuse angle.
And you are totally wrong.
http://www.mathsisfun.com/angles.html