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sage234
A carpenter is building a frame. Which values of a and b will ensure that the sides of the finished frame are parallel? https://www.connexus.com/content/media/451160-12162010-111248-AM-455092945.png a = 40 and b = 60 a = 45 and b = 50 a = 30 and b = 60 a = 40 and b = 40
it should be equal to 90 degree
a nd b must be complimentary, that is add up to 90 degrees. (only then will the two joints be exactly perpendicular to each other, leading to the opposite sides being parallel)
so its the third answer?