WILL GIVE BRAINLIEST TO THE FIRST PERSON TO ANSWER! PLEASE.. A carpenter cuts a 2" × 4" board to a desired length. He then uses this board as a pattern to cut the second board congruent to the first. Similarly, he uses the second board to cut a third board and the third board to cut a fourth board. Prove that the last board cut has the same measure as the first.

I need help with this fast please.