An obtuse angle
It is an obtuse angle because it is greater than 90 but less than 180 degrees
A straight angle has 180 degrees. It is an angle that has sides in opposite directions from its vertex. A straight angle will look like a straight line.
A 140 degree angle is about half way between a 90 degree angle, which has lines that are perpendicular to each other, and a 180 degree angle, which is a straight line. A 140 degree angle is an obtuse angle which has a line a little over half way between the 90 degree and 180 degree angles.
I'm assuming that you mean an obtuse angle. An obtuse angle is greater than 90 degrees but less than 180 degrees. Therefore an obtuse angle is larger than a right angle, but less than a straight angle.
a line or straight angle
Picturing a clock face, a 180 degree angle appears as if the time was 6:00.
A straight line passing through the point at which the angle is located.
an angle that is greater than 90° but less than 180°.
An obtuse angle
It is a reflex angle because it is greater than 180 degrees
An obtuse angle is greater than 90 but less than 180 degrees.
It is a reflex angle which is greater than 180 but less than 360 degrees
an obtuse angle is greater than 90 degrees and less than 180 degrees
An angle with a measure of 180 degrees will look like a straight line with the vertex being a point in the center. Since a complete circle is 360 degrees, opening an angle to 180 degrees traces out exactly half a circle.
It is an obtuse angle because it is greater than 90 but less than 180 degrees
Bigger than 90 (a right angle), less than 180 (a straight line).