Use the image to answer the question.
142 degrees at point A
_ degrees at point B
Use the properties of exterior angles of triangles to find angle B.
A. 232 degrees
B. 92 degrees
C. 38 degrees
D. 52 degrees
B. 92 degrees
Since the exterior angle at point A is 142 degrees, angle B can be found by subtracting 142 degrees from 180 degrees (since the sum of the exterior angle and the remote interior angle of a triangle is 180 degrees).
180 - 142 = 38 degrees
Therefore, angle B is 38 degrees.
You are saying two different anwsers
I apologize for the confusion. Let's reevaluate the answer using the correct reasoning.
The exterior angle at point A is 142 degrees. According to the properties of triangles, the exterior angle is equal to the sum of the two remote interior angles. Therefore,
Angle B = 180 - 142
Angle B = 38 degrees
So, the correct answer is:
C. 38 degrees