I’ve been stuck on this for a few minutes. I’m not really sure what to do..

Step-by-step explanation:

You know that the three angles of a triangle add up to 180°. If one angle is 38° and another angle is 67°, then the third angle must be 180°-38°-67° = 75°.

You have a straight line across the bottom, and three angles meeting in the middle of it. Those three angles add up to 180°. One of them is 75°, another is 50°, so the third angle must be 180°-75°-50° = 55°.

That leaves you with one unknown angle. ? = 180°-40°-55° = 85°

the correct answers i think are b. and d.

give me brainliest if it is correct!

answer: both chords and diameters have two endpoints on a circle. diameters must intersect the center of a circle.