If the center of dilation is A, this means that point A is invariant.
- This means you can eliminate C and D.
Also, the scale factor is 3/4, which means that A'C' is more than half the length of AC.
- This is best reflected by option B
If this is supposed to be
Then this can simply be reduced to
by the double angle formula for cosine
Vertex is located over the center of the base of a regular pyramid.
<h3>
What is Vertex Angle?</h3>
Vertex angle is defined as the angle formed by two lines or rays that intersect at a point. These two rays make the sides of the angle.
Here, Vertex is the point which is located over the center of the base of a regular pyramid.
Learn more about Vertex angle from:
brainly.com/question/2028172
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I have no idea what the answer is to this question
Answer is A all real numbers