Assume abc def. if ab = 12, bc = 15, and ac = 17, what is the length of ef? a. 15 b. 17 c. cannot be determined d. 10

Option A) EF = 15 units.  

Step-by-step explanation:

We are given the following information in the question:

ΔABC ≅ ΔDEF

AB = 12, BC = 15, and AC = 17

If two triangles are congruent then they have the following properties:

AB = DE

BC = EF

AC = DF

Hence, by congruency:

BC = EF

EF = 15 units.

Thus, option A is the correct answer.

e) none of the above because the measure of angle cba is 101°

the answer is d

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