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

Question

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

anonymous · Answer

it should be equal to 90 degree

apoorvk · Answer

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)

anonymous · Answer

so its the third answer?

anonymous · Answer

yes