Slove for x for the triangle

31.5°

Step-by-step explanation:

x + 18 + 2x + 4 + x+32 = 180° [Angle sum property of triangle]

=> x + 2x + x + 18 + 4 + 32 = 180

=> 4x + 54 = 180

=> 4x = 180 - 54

=> 4x = 126

=> x = 31.5° (Ans)

b.an increase in a causes b to decrease

ca = ec

cpctc makes it so that corresponding parts of the triangle you proved to be equal are equal, the other options aren't part of the part of the triangles you proved to be equal.