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Question 4 of 25

How many degrees has AABC been rotated counterclockwise about theOrigin?
OA. 90°
OB. 180°
OC. 270

Question 4 of 25 How many degrees has AABC been rotated counterclockwise about theOrigin-example-1
User Huppo
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1 Answer

3 votes

Answer:

A.90 degrees.

Explanation:

The rotation rule for a 90 degree counterclockwise rotation is (x,y)->(-y,x)

In triangle A'B'C', the sign in front of the x coordinate stayed the same, but the sign in front of the y coordinate changed to a negative. The order of the x and y coordinates also changed.

User Samturner
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