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.
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
3 answers
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
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