Abuilding has a length of 40 m. the length of its scale model is 25 cm. what scale factor was used to make the scale model?

Pls! does anybody know a shortcut for answering these types of questions in the future?

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.

What is the measure of angle x? answer