A, B, then C
3
An isosceles triangle has rotational symmetry of order 1.
That will depend on what type of triangle it is and if it is an equilateral triangle then it will have rotational symmetry to the order of 3
A triangle can be rotated through any angle of your choice!An equilateral triangle has rotational symmetry of order 3, which means that a rotation of 120 degrees (or multiples) will bring it back to the same orientation. All other triangles have rotational symmetry of order 1: that is, you have to rotate them a full circle (360 deg) before they look the same.
No.
An isoceles triangle does not have rotation symmetry
Yes
It depends on the type of triangle. A scalene triangle (no equal sides) has no rotational symmetry. An isosceles triangle (2 equal sides) has rotational symmetry order 2. An equilateral triangle (3 equal sides) has rotational symmetry order 3. The order of rotational symmetry is how many time a shape will fit over itself during one complete rotation.
yes the rotation symmetry of an equilateral triangle is 3
The size does not change and the orientation is altered by the extent of the rotation.
no rotational symmetry
Three.