It is angle RST.
the measure of an angle is the degrees of an angle.
The measure of the exterior angle.
No cheating!
15
It is angle RST.
the measure of an angle is the degrees of an angle.
you can measure a angle with a protracte.
they both measure the angle in degrees
The measure of the obtuse angle would then be double that of the acute angle.
The measure of the exterior angle.
No cheating!
15
What does a straight angle measure?
If it is a regular nonagon, then you use the following formula: [(s-2) x 180]/s = angle of one interior angle. (s means the number of sides) Then solve: [(s-2) x 180]/s = [(9-2) x 180]/9 = [7 x 180]/9 = 1260/9 = 140. Then, for the exterior angle, subtract 140 from 360. The measure of the exterior angle of a regular nonagon is 220.
105 degrees
120 Consider: You know that the supplement of an angle is equal to 180 minus the angle. You also know that an angle is twice it's supplement. Now, if you think of angle as being "A", and it's supplement being "S", then we can re-express the above statements like so: S = 180 - A A = 2S Then logically, we can replace the "S" in the second equation with the value we have for it in the first one: A = 2( 180 - A) and then solve that equation: ∴ A = 360 - 2A ∴ A + 2A = 360 ∴ 3A = 360 ∴ A = 360/3 ∴ A = 120