If the angle of rotaional symmetry of a figure is 30 degree the order is

Many shapes have rotational symmetry, such as rectangles, squares, circles, and all regular polygons. Choose an object and rotate it up to 180 degrees around its center. If at any point the object appears exactly like it did before the rotation, then the object has rotational symmetry.

A shape has Rotational Symmetry when it still looks the same after some rotation. As we rotate this image we find three different positions that each look the same. So it has Rotational Symmetry of Order 3. See: Rotation.

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Part A:

If x = 5 then 4x = 20

20 - 1 = 19

19 is less than or equal to 19, as represented in the first equation.  however, 19 is not less than 19, as represented by the second equation.

Part B: 9

If x = 9, then 5x = 45.

45 + 2 = 47

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