In the straightedge and compass construction of the equilateral triangle below, how do you know that ab ≅ ac?

a. ac and bc are radii of the same circle.
b. ab and bc are radii of the same circle.
c. ab and ac are radii of the same circle.
d. ab is the radius of both circles.

the answer is (-8,-5)

step-by-step explanation:

the endpoint to midpoint is half the length. the length is (-2,-1) so when you are at the midpoint just add it to it to find your answer -6+(-2)= -8 and -4+(-1)=-5 so (-8,-5)

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