Question

Vertical angles must:Check all that apply. A.be complementary. B.be acute. C.have the same vertex. D.be congruent.

Answer 1

Vertical angles must:

Check all that apply.

√A. be congruent.

B. be acute.

√C. have the same vertex.

D. Χοbe complementary.

Explanation:

Answer 2

Vertical angles must be C and D

A.be complementary. They are not always complementary, to be complementary means having a sum of 90 deg
B.be acute. - Vertical angles can be NOT acute depending on how they are positioned and intersected with the lines.

Answer
C.have the same vertex.
D.be congruent.