Question

In triangle DEF, EF = 9, FD = 16, and DE = 11. Which statement about the angles of triangle DEF must be true?

Answer 1

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Answer:

(a) E > F > D

Explanation:

The angle measures have the same ordering (greater that/less than) as their opposite sides. The sides, longest to shortest, are FD, DE, EF. Their opposite angles, in the same order, are E, F, D. The attached statement about the angles must be true.