Respuesta :
The correct answer is D. In class we learned about triangles and about the right way to measure their angles.
Answer: D) In class we learned about triangles and about the right way to measure their angles.
Explanation: parallelism is a literary device that consists in the repetition of the grammatical structure of different words or phrases in a sentence or paragraph, in order to emphasize an idea or to create an impact in the audience. From the given options, the revision that best corrects the faulty parallelism in the sentence, is the corresponding to option D, because it mantains the order of the phrases (the structure).