What is the decimal equivalency of 6/40

What two criteria are needed for triangles to be similar

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.

Which basic geometric term has no width, no length, and no thickness? line b. point c. angle d. plane