A rectangular section of granite is being cut so that the length is 3 times the width. The perimeter of the section must be less than 320 inches

b). 4320 have a nice day

2,160 π

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