For the following right triangles: ___ ___

AC ≅ DF

What else do we need to know to prove that the triangles are congruent by HL?

What are the relative frequencies to the nearest hundredth of the columns of the two-way table?

Solve each quadratic equation by factoring and using the zero product property. 14x - 49 = x^2

Statements reasons 1. ab ? cd; ad ? bc 1. given 2. ac ? ac 2. reflexive property 3. ? adc ? ? cba 3. ? 4. ? dac ? ? bca; ? acd ? ? cab 4. cpctc 5. ? dac and ? bca are alt. int. ? s; ? acd and ? cab are alt. int. ? s 5. definition of alternate interior angles 6. ab ? cd; ad ? bc 6. converse of the alternate interior angles theorem 7. abcd is a parallelogram 7. definition of parallelogram what is the missing reason in step 3?