Respuesta :

Answer:

x = 44

Explanations:

Note that:

Opposite angles of a cyclic quadrilateral are supplementary

m

mm

(3x + 10) + 38 = 180

3x + 10 + 38 = 180

3x + 48 = 180

3x = 180 - 48

3x = 132

x = 132/3

x = 44