For this case we have:
By trigonometric property we have:

Where:

Substituting:

Clearing x we have:

Thus, the equation is: 
Answer:

Answer:
As the measures of the interior angles of all triangles add to equal 180 degrees
Step-by-step explanation:
Answer:
you could do 27+x=30
Step-by-step explanation:
Answer:
sinΘ = 
Step-by-step explanation:
sinΘ =
=
= 