Question

please me the process on this math

Answer 1

1. 75+28+x= 180
103 + x = 180
x = 180-103
x = 77

Answer 2

Answer:

Step-by-step explanation:

W.K.T, sum of interior angles of a triangle is 180°.

1) x+75+28=180

  ⇒x+103=180

  ⇒x=180-103

  ⇒x=77°

2) x+95+45=180

 ⇒x+150=180

 ⇒x=180-150

 ⇒x=30°

3) x+90+50=180

 ⇒x+140=180

 ⇒x=180-140

 ⇒x=40°

4) 15+15+x=180     (angles opposite to equal sides are equal)

 ⇒30+X=180

 ⇒x=180-30

 ⇒x=150°