### How much rotational symmetry does triangle have?

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.

### What is the definition of axis?

There are two different definitions, depending on the context. In coordinate (or analytical) geometry an axis is one of one or more numbered straight lines. If there are more than one line, usually they are orthogonal - that is, they meet at 90 degree angles. The second definition of an axis is in the context of symmetry. Given any shape, an axis is a straight line such that the shape is symmetric about that line…

### How much should all sides of a triangle equal up to?

There are four types of triangles. For an "equilateral triangle", all sides and angles have to be the same. For an "isosceles triangle", 2 of 3 sides and angles have to be the same. For a "scalene triangle", the "the same" rules don't apply. For a "right-angled triangle", one corner has to be a right angle (90 degrees.) For example in an equilateral triangle, as long as the sides are the same, they can add…

### How do you find the measurement of a side of a triangle if you have the measurement of 2 sides?

If it is a right triangle (one angle is exactly 90 degrees) it is much easier: use the Pythagorean Theorem. Pythagorean Theorem states that for right triangles: a2 + b2 = c2 Where a and b represent the length of the sides adjacent (next to) to the right angle, and c represents the length of the side opposite the triangle. Plug the two sides you do know into this equation to get the third. If…

### What are rotational symmetry?

Rotational symmetry is determining whether a shape has symmetry when it is rotated from the center. For example: if you have a star fish, it does have rotational symmetry because you can rotate the star fish 5 times and their still be symmetry. If the object has rotational symmetry, you then can determine the percentage and order of the ratational symmetry. The percentage is how much out of 100% the object is rotated to find…