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PPEASE HELP ONLY ANSWER IF YOU KNOW

PPEASE HELP ONLY ANSWER IF YOU KNOW-example-1

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Explanation:

In order to rotate a coordinate point by 90° in the counterclockwise direction, follow the following transformation rule:

(x, y) ---> (-y, x)

Here is the list of the coordinates of the points on the fan blade and next to it is a list of points that are rotated by 90° in the counterclockwise direction:

Normal. Rotated

(x, y) (-y, x)

(3, 1) (-1, 3)

(5, 2) (-2, 5)

(8, 4) (-4, 8)

(9, 6) (-6, 9)

(8, 8) (-8, 8)

(6, 9) (-9, 6)

(4, 8) (-8, 4)

(2, 5) (-5, 2)

(1, 3) (-3, 1)

Simply repeat the pattern for the other two blades.

User Yasirkula
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