In the figure, and . complete the following statements to prove that and are supplementary angles. and , as they are corresponding angles for parallel lines cut by a transversal. therefore, if , then by the . therefore, and are supplementary angles by the . ° (1) , so (2) applying the to (1) and (2), we get . therefore, and are supplementary angles.

Hello,your answer would be: 1) d. (transitive property of congruency)2) c. (linear pair theorem)3) d. transitive property of congruency) to equations (1) and (2), we get m∠ikl + m∠jld = 180°.4) c. (congruent supplements theorem)plz mark me brainliest! hope this !

Okay so for every triangle has three angles that always add up to 180 degrees. and to tell the difference between whether they are secure, right or obtuse is that acute: has one angle that is less than 90 degrees. right triangle means there is at least one angle that is exactly 90 degrees. and an obtuse angle has an angle that is bigger than 180 degrees. i’ll do #13 as an example: 13. 40 and 50 so if every triangle has 180 degrees 40+50= 90 degrees then180-90= 90 degrees so the third angle is 90 degrees and because this triangle has a 90 degree angle it means it is a right triangle

Gotta be d the music of previous eras