Question

question 4 of 10 which of the following describe an angle with a vertex at a? check all that apply. a. ∠bac b. ∠cab c. ∠abc d. ∠acb

Explanation:

An angle's vertex is the middle letter in its 3-letter notation. For vertex at A, the middle letter must be A.

Answer:

A. ∠BAC, B. ∠CAB