Respuesta :

gabiii4
For y:
a/sinA = b/sinB this is the sine rule
15/sin55 = y/sin90
therefore y= (sin90)(15/sin55)

then Pythagoras theory a^2 + b^2 = c^2
15^2 + x^2 = y^2
so x^2= y^2 - 15^2
square root it then you get x

Otras preguntas