Help?!? I know that we need to use the Triangle Angle Sum Theorem, but... I'm completely blank.

Select the number of ways in which a line and a circle can intersect

Which of these tools or constructions is used to inscribe a hexagon inside a circle?

Which is a logical conclusion based on the given information? a. figure abcd is a rhombus by the definition of a rhombus. b. segment ac is congruent to segment dc by cpctc. c. angle acb is congruent to angle adc by the angle-side-angle theorem. d. triangle acd is congruent to triangle cab by the hypotenuse-leg theorem.