This is closest to your problem
I'm not quite sure what you are asking here,
but I got x = 11.
Answer:
<h2>109 and 71</h2>
Step-by-step explanation:
3x + 10 + 3x - 28 = 180
6x = 180 - 10 + 28
x = 198/6
x = 33
substitute the value of x = 33 back into the equation to solve for each angle
= 3x + 10
= 3(33) + 10
= 109
= 3x - 28
= 3(33) - 28
= 71
The sine rule will help you here.
On a unit circle, sin(Θ) would be the y-coordinate of point P (ie., 20). But we're not on the unit circle, so we'll have to divide 20 by the length of P (from the origin). The length of P = √(15²+20²) = 25.
So sin(Θ) = 20/25 = 0.8
