Answer:
x=23
Step-by-step explanation:
When realizing that the total degrees of a line = 180 you can set the equation to that number.
So that it would look like this-
3x+18+93=180
then you would combine like terms (18+93=111)
3x+111=180
Subtract 111 to start to get x by its self
180-111=69
then it would look like this
3x=69
Divide by 3 and then you get the correct answer of 23!
x=23°
93°+(3x+18)°=180°
93°+3x+18°=180°
111°+3x=180°
3x=180°-111°
3x=69°
x=69°:3
sin A = 12/13
Since this is a right triangle, we can use trig functions
sin theta = opposite side/ hypotenuse
