Greater than 90 degrees but less than 180 degrees
A big angle.
When the angle you are measuring is obviously an obtuse angle (angle above 90 degrees, or when you draw a box in the angle and it turns out bigger than it's supposed to) you use the big numbers. When the angle is obviously acute (opposite definition of obtuse), you use the little numbers.
Over 90 degrees
if the angle is wider than a right angle its obtuse if the angle is smaller its acute like small things are cute that's how i remember it:)
Line up the vertex, then if it is an acute angle use the small number, obtuse use the big number, next all you have to do is bring your finger up to where the angle line is and see what number, big or small it lines up with on the protractor!
A big angle.
YOU can use a right angle by making it small to make it acute or you can make it big so it is obtuse
When the angle you are measuring is obviously an obtuse angle (angle above 90 degrees, or when you draw a box in the angle and it turns out bigger than it's supposed to) you use the big numbers. When the angle is obviously acute (opposite definition of obtuse), you use the little numbers.
Over 90 degrees
Over 90 degrees
If the angle is measured at 130 degrees then it is called an obtuse angle.
A obtuse angle is called an obtuse angle because if obtuse means bigger in degrees and a right angle is 90 degrees than a obtuse angle must be over 90 degrees.
if the angle is wider than a right angle its obtuse if the angle is smaller its acute like small things are cute that's how i remember it:)
An obtuse triangle has an obtuse angle.
110 degrees creates an obtuse angle.
An obtuse angle has no complementary angle.
It is an obtuse angle