In ΔDEF, m∠D = 83° and m∠E = 11°. Which statement about the sides of ΔDEF must be true?

We're given D = 83 and E = 11. Let's find the missing angle F

D+E+F = 180

83+11+F = 180

94+F = 180

F = 180-94

F = 86

Since the triangle has angles

D = 83

E = 11

F = 86

We can say the following:

FD is the shortest side (since it is opposite the smallest angle E = 11)ED is the longest side (since it is opposite the largest angle F = 86)That puts side EF as the medium length side of the triangle. All three angles of this triangle are less than 90, so this triangle is acute.Also, all three angles are different which makes this triangle scalene as well.

Hnmmmn not sure