<h2>
Answer:</h2>
D. Inscribed angle
<h2>
Step-by-step explanation:</h2>
An inscribed angle has a vertex on the circumference. For any arc, every inscribed angle is exactly half of the central angle. In other words, if the central angle is
and the inscribed angles is
, then it is true that:

In this problem
, then the central angle is 
Answer:
Hope this helps.
Step-by-step explanation:
Answer: it’s 81
Step-by-step explanation:
easy math I know it’s 81
The other answer is 12x2 – 8xy + 12x + y2 – 2<span>y</span><span />