An angle is said to be trisected, if it is divided into three equal parts. If in Fig. 2.42, ∠BAC = ∠CAD = ∠DAE, how many trisectors are there for ∠BAE?
Trisectors are the lines which trisect an angle (or which divide an angle into 3 equal parts).
So, here we have two trisectors for ∠ BAE: AC and AD.