It takes a small jet plane 4 hours less time than it takes a propeller-driven plane to travel from glen rock to oakville. the jet plane averages 637 km/h while the propeller plane averages 237 km/h. how far is it from glen rock to oakville

nope.   happens to me as well.

-aparri

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