3) Wayne's snowboard is 90 cm long. Luke's snowboard is 120 cm long. Luke's board is what percent longer than Wayne's? Wayne's board is what percent shorter than
Luke's? Make bar diagrams to illustrate your answers.

8

step-by-step explanation:

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