Answer :
Answer:
310°
Step-by-step explanation:
A rotation changes the position of the polygon but not it's shape.
After the rotation the image and original polygons are congruent.
Thus ∠ B'C'D' = ∠ BCD = 310°
Answer:
310°
Step-by-step explanation:
A rotation changes the position of the polygon but not it's shape.
After the rotation the image and original polygons are congruent.
Thus ∠ B'C'D' = ∠ BCD = 310°