Greg walks into a store at 6:30 a.m.
The store opens at 8:00 a.m.
How much time does Greg have until the store opens?
8:00-6:30=. 1 hour and 30 minutes
Okay first, use the sin rule (

so

sin^-1 this and you get 47.928....this is angle ADB
and as it is on a straight line, 180 - this angle gets ADC
180 - 47.928.... = 132.07
1.20 + 0.34 = 1.54
That is the answer.