Question

Please help!!!!!!!!!!!!!!!!
Cody drew in the 3 exterior angles of his triangle. He measured each angle and labeled them below. (picture)
Cody found the sum of the exterior angles to be 380°. Did Cody make an error? If so describe it.

A) No, Cody did not make an error. The sum of the exterior angles of a triangle should be 380°.
B) Yes, Cody made an error adding the three exterior angles together.
C) Yes, Cody made an error drawing the exterior angles. The 145° angle is not an exterior angle.
D) Yes, Cody made an error drawing the exterior angles. The 100° angle is not an exterior angle.

Answer 1

yes there is error
sum of all exterior angles = 2(sum of interior angles)
= 2×180 = 360

Answer 2

Yes, Cody made an error drawing the exterior angles. The 145° angle is not an exterior angle.