What is the missing statement in step 3 of the proof? mangle1 = mangle2 mangle1 + mangle2 = 90° mangle2 = mangle3 mangle2 + mangle3 = 180°

answer is 90

if m^2=m^3

then, 90+90=180

Step-by-step explanation:

the answer is a

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