Answer :
Answer:
m∠A'B'C' is 125°
Step-by-step explanation:
The given parameters are;
The measure of ∠ABC = 125°
The form of transformation applied to ∠ABC = 75° rotation about the point B
Given that a rotation of a geometric figure is a form of rigid transformation, the distance between the coordinates of the points in the preimage are equal to the distance between the coordinates of the points on the image;
Therefore, the angle formed by the ray AB and CB and the angle formed by the ray A'B' and C'B' are equal
From which we have;
m∠ABC = m∠A'B'C' = 125°