Any angle of your choice. The polygon need not be symmetric since it is not regular.
If ll the angles of one triangle are the same as the angles of another triangle they are similar. Rotation is always allowed and mirroring often can be allowed.
One-sixth
If you rotate a 20-sided regular polygon by 360/20 degrees, the result will look the same as the original polygon. Any additional rotation will be a multiple of this number.
The answer depends on the centre of rotation. A rotation cannot be described without specifying the centre of rotation.
There are many angles inside a circle. You have inscribed angles, right angles, and central angles. These angles are formed from using chords, secants, and tangents.
S of interior angles of ANY n-sided polygon is (2n -4) right angles, so 2 x 30 - 4 = 56, 56 x 90 = 5040 degrees
An octagon may have 1, 2, 4 or 8 angles of rotation.
360⁰
The three transformation in angles are translation , rotation , reflection .
1 complete rotation = 360o 1 right angle = 90o 360o ÷ 90o = 4 There are 4 right angles in 1 complete rotation.
45
4
A full rotation = 360°; a right angle = 90° → there are 360° ÷ 90° = 4 right angles in a full turn.
Right angles are ninety degree angles. That is equal to one quarter of a complete rotation.
A Pentadecagon had 15 sides
They do not alter the size nor the angles of the shape.
1/3 rotation counterclockwise