I NEED HELP what is the side length of cube A?

Given: hf || jk; hg ? jg prove: fhg ? kjg to prove that the triangles are congruent by asa, which statement and reason could be used as part of the proof? fgh ? kgj because vertical angles are congruent. jkg ? hfg because vertical angles are congruent. fhg ? jkg because right angles are congruent. hfg ? kjg because alternate interior angles are congruent.

One integer is 8 times another. if the product is 72, then find the integers

With both problems. a. s.a. p directions on photo ^