The formula of a midpoint:

We have:

Substitute

<h3>Answer: (-2, -4)</h3>
Answer:
Check pdf
Step-by-step explanation:
ES is half of EF since a chord is bisected by the radius. ES = 10
I don't know what the first two blanks are asking for, but the last one should be Alternate Exterior Angles Property of Congruence (AEAPC).
Area of triangle = base x height x 1/2
Area of the triangle:
= 12 x 15 x 1/2
= 180 x 1/2
= 90 units^2