Mark has two triangular shaped fields as shown below. Are two fields congruent? Explain why or why not.

The correct answer is: ABC⩭ DEF by SSS congruence rul

Complete step by step solution:

From the figure,
In ABC and  DEF, we have
AB = EF = 15 ft (given)
BC = DE = 16 ft (given)
AC = DF (given)
Hence ABC⩭  DEF by SSS congruence rule