Need help with Sine RuleWatch
When working out angle it is not a/sin A = b/sinB
It is the other way around so sinA / a = sinB / b
So in your case: sinX / 8 = sin100 / 11
So you get sinX / 8 = ans
So sinX = ans * 8
So sinX = 0.7162238204
But when it is angles you need to do inverse sin
So you get
Sin^-1 (0.7162238204) = 45.74358566
So the angle is 45 or 46 degrees depending on question
Hope this helps.
Bored gcse maths student.