Respuesta :

In this triangle it is given that one angle if of 30⁰ and another one is of 90⁰

so By using ANGLE SUM PROPERTY we can solve it

so,

30⁰+ 90⁰ + 4x - 4⁰ = 180⁰(ASP)

120⁰ + 4x - 4 = 180⁰

4x - 4 = 60⁰

4x = 64

x = 16⁰

Hence solved

hope it help u