Question

question 4. select all the true statements. a. angles are congruent if and only if they are vertical b. not all congruent angles are vertical c. all vertical angles are congruent d. all congruent angles are vertical e. not all vertical angles are congruent f. angles are vertical if and only if they are congruent

Explanation:

• Vertical angles are formed by two intersecting lines and are always congruent. But congruent angles can be non - vertical (e.g., two separate 90 - degree angles). So not all congruent angles are vertical.

Answer:

B. Not all congruent angles are vertical
C. All vertical angles are congruent