I got 31 can someone tell me and show how they got thier answer?

I got 56.8cm

Please help

Guest Apr 10, 2018

#1**+1 **

First one...we can use the Law of Sines

sin R / 30 = sin 69 / 35 multiply both sides by 30

sin R = 30 sin (69) / 35

Use the arcsin to find R

arcsin [ 30 sin (69) / 35 ] = R ≈ 53.15° = 53°

Second one.....

Note that angle F = 180 - 87 - 40 = 53°

So...we can use the Law of Sines, again

x / sin 87 = 13 / sin 53 multiply both sides by sin 87

x = 13 * sin 87 / sin 53 ≈ 16.25 cm = 16 cm (rounded)

CPhill Apr 10, 2018