Question

1. Reflect DEF across a vertical line.
2. Rotate DEF 120 degrees about point D


Is DEF congruent to HJK?

Answer 1

Solution

The reflection in the point situated at the origin is the same as vector negation

The point about which the object is rotated is the point of rotation. The amount of rotation measured in degrees is called the angle of rotation.

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The final answer

Option B