The perimeter of a rectangular note card with length l and width is 21 t 2w. a rectangular note card is 3 inches long and 5 inches wide. what is the perimeter of the note card

cosine

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

the answer is a.

135 and 80

step-by-step explanation:

do you have an easier question cause this shh is hard like theheck

step-by-step explanation: