The supplementary angle to a 60 degrees be considered

A) acute
B)obtuse
C)straight

obtuse

Step-by-step explanation:

Supplementary angles add to 180 degrees

60+x = 180

Subtract 60 from each side

x=180-60

x= 120

The supplementary angle is 120

This is greater than 90 degrees so it is obtuse

acute < 90

obtuse >90

right =90

straight = 180

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.