Answer:
I do have the answers here. They're from the other answer you saw.. Some of the answers are also in the pictures as well. But i'm really sorry, I still haven't figured out 10 yet...
Statements:
5. Angle CAD is congruent to angle DCA;
Angle DAE is congruent to angle AED
11. Angle ADC and Angle EDA are supplementary
18. Angle CAE is 90 degrees
20. AE is perpendicular to AC
Reasons:
3. Definition of isosceles triangle
4. Sum of interior angles of a triangle is 180 degrees.
9. Subtraction
16. Definition of complementary angles
21. Converse of Radius-Tangent Theorem