Answer: -14.2 hoped this help kiddo
Step-by-step explanation:
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
Step-by-step explanation:
The sum of two opposite interior angles equals an exterior angle
50+?=115
?=115-50=65°
(8 plus of minus radical 64 + 216
divided by
6
(8 + or - 16.73320053)/6
36/63 in its simplest form is 4/7
Have a great day! =)