In the figure, / is mapped onto / by a 180° rotation. Angle B corresponds to which angle in /? A. X )B. Y) C. Z) D. C)
2 answers:
Answer:
The correct option is B.
Step-by-step explanation:
From the given diagram it is clear that the measure of angle B is 90 degrees because it is a right angled triangle.
The coordinates of vertex B are (-5,2).
If a point P(x,y) is rotate 180 degree about the origin, then
The coordinates of image of B are
The coordinates of image of B are (5,-2). These are the coordinates of vertex Y and the measure of angle Y is 90 degree.
The angle Y corresponds to angle B. Therefore the correct option is B.
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