Please help, picture attached! <3

The answer to your question is Ф = 210°; sin 120 = -1/2

Step-by-step explanation:

Data

Ф = 7π/6

∠ = ?

sin Ф = ?

Process

1.- Convert radians to degrees using proportions and cross multiplication

                     π rad     180°

                   7π/6 rad     x

                     x = (7π/6 x 180) / π rad

                     x = (7 x 180) / 6

                     x = 1260/6

                     x = 210°

2.- Find the sin of 210°

sin 210 = -1/2

7 ft 6 in means 7 1/2, because 6 in is 1/2 of a foot. 7 ft 8 in means 7 2/3 because 8 in is 2/3 of a foot. 23/3 = 7 2/3. 15/2 = 7 1/2.

23/3   *   15/2   = 57 1/2

step-by-step explanation: