Answer :
Final answer:
Angle ∠3 can also be accurately represented as ∠TEC or ∠CET but not as ∠C, ∠E or ∠T. Also, ∠ECT and ∠ETC are the incorrect representations.
Explanation:
In mathematics, specifically in geometry, an angle can be identified in multiple ways. An angle is generally represented by three points or named by the point at its vertex. In the case of angle ∠3 which is represented as ∠TEC, the other correct ways to represent it would be ∠CET, since angles can be named starting from either of the ray points. However, naming it as just ∠C, ∠E or ∠T would be incorrect as they only represent a single point, not an angle. Similarly ∠ECT and ∠ETC would also be incorrect as the letter sequence does not represent the actual angle formation from point T to E to C.
Learn more about naming angles here:
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