AB is perpendicular to line segment CF, FH, DH, GH. If the length of EF is a unit, then the length of GH is A, B, A+B, A-B
units.

based on context clues you gave i'm assuming the answer would be c.

21

step-by-step explanation:

i think it is everything has to equal 180 so, if i correct 4=c. 6=d. 8=a. 7=b. and the last question would be c. because they are parallel lines and they are congruent.

step-by-step explanation:

the reason everything has to equal to 180 is because that is how it works. i'm guessing that is its rule. 4 and 8 are congruent and parallel so, that would be 30+30 because they have the same number. it would equal 60. 6 and 7 are congruent and parallel so, that would be 30+30 because they have the same number. it would equal 60. 60+60 is 180. so, now you have your answer

the correct answer is 1: 2

step-by-step explanation:

hope this your welcome : )