Enough information is given. Explanation: See solution.
Practice makes perfect
According to the HL Congruence Theorem, if the hypotenuse and a leg of a right triangle are congruent to the hypotenuse and a leg of a second triangle, then the two triangles are congruent. We see that the hypotenuses are congruent:
AC ≅ FD
We also see that two legs are congruent:
AB ≅ EF
Since the hypotenuse and a leg of one right triangle is congruent to the hypotenuse and a leg of another right triangle, the triangles are congruent by the HL Congruence Theorem.
