Easy, 13 points: Name the intersection of plane X and plane Y

the answer

b. they are parallel and will never intersect.

i belive those are the ones that are under 90 degreese.

answer: the angel abc is 30°,and the abc is a triangle where the angel bac is 90°

so ac is the half of 24=12ft,and from the pythagorean theorem we find ba

ba=√bc^2-ac^2=√576-144=√432=12√3ft

so bac is 12+12√3=12(1+√3)ft