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i rilly dont no is it (n-2)*180?? <--- that's actually for finding the Interior Angles for geometry.
the way I remember rotational symmetry is as follows:
each shape has to add up to 360 degrees, so you take that and divide it by the number of sides of the shape. Then, you keep adding that answer till you come get to 360.
Example:
The rotational symmetry for an Octagon:
360/8 = 45
45 + 45 = 90
90 + 45 = 135
135 + 45 = 180
180 + 45 = 225
225 + 45 = 270
270 + 45 = 315
315 + 45 = 360
The degrees for Rotational Symmetry are: 45, 90, 135, 180, 225, 270, 315, and 360.
Hope that helps, because it's what helps me.
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What rotational symmetry does a trapezoid have?
A trapezoid has no rotational symmetry.
Is z rotational symmetry?
No a Z doesn't have a rotational symmetry
Does T have rotational symmetry and line symmetry?
It has line symmetry (straight down the center) but not rotational symmetry.
An equilateral triangle has reflectional symmetry but does not have rotational symmetry?
It does have rotational symmetry of order three.
Does a rectangle have line symmetry without rotational symmetry?
No A rectangle has rotational symmetry as well
What is the rotational symmetry of a trapezoid?
A trapezium does not have rotational symmetry.
Does z have rotational symmetry but no line symmetry?
The letters H and Z have both line symmetry and rotational symmetry
What is the rotational symmetry of a rectangle?
It has rotational symmetry to the order of 2
How much rotational symmetry does an octagon have?
It has 8lines of rotational symmetry
Which triangles have rotational symmetry?
Equilateral triangles have rotational symmetry.
What rotational symmetry does a trapezoid have?
A trapezoid has no rotational symmetry.
Is z rotational symmetry?
No a Z doesn't have a rotational symmetry
How many rotational symmetry fold does a line have?
A line has rotational symmetry of order 2.
Does T have rotational symmetry and line symmetry?
It has line symmetry (straight down the center) but not rotational symmetry.
An equilateral triangle has reflectional symmetry but does not have rotational symmetry?
It does have rotational symmetry of order three.
Does a rectangle have line symmetry without rotational symmetry?
No A rectangle has rotational symmetry as well
What shape has a rotational symmetry of order 1?
none shapes have 1 rotational symmetry because in rotational symmetry one is none
