270 degrees
If you want to ask questions about the "following", then I suggest that you make sure that there is something that is following.
540 degrees.
There is no such figure as a 20 degrees polygon.
A four sided figure is known as a quadrilateral and its 4 interior angles add up to 360 degrees
Total of exterior angles of a plane figure is always 360 degrees so 360/20 = 18 degrees. Alternatively interior angles of n sided figure always total (2n -4) right angles. In this case n = 20 so total interior angles = 36 right angles ie 3240 degrees and each angle = 3240/20 ie 162 degrees. Subtracting this from 180 gives 18 degrees. QED
90 degrees
An obtuse angle.
ON apex it is 64 degrees......
You might be able to figure this out for yourself, based on the following information:* The angles of a triangle must add up to 180 degrees. * A right angle has a measure of 90 degrees.
A straight angle
1080 degrees
The interior angles measure 360 degrees.
I believe it's 1,800 degrees.
An isosceles triangle.
Each angle has a measure of 120 degrees
If you want to ask questions about the "following", then I suggest that you make sure that there is something that is following.
20 degrees