Respuesta :
Answer:
The degree measurement of angle A' is 130°.
Step-by-step explanation:
Given information: ∠A = 130° and ∠B = 50°.
Sam rotated parallelogram ABCD 90° clockwise around the origin. If angle A is 130° and angle B is 50°.
Rotation is a rigid transformation, it means the size and shape of a figure remains same after rotation. In other words we can say that preimage and image are congruent.
[tex]ABCD\cong A'B'C'D'[/tex]
Corresponding parts of congruent figures are congruent.
[tex]\angle A\cong \angle A'[/tex]
[tex]m\angle A=m\angle A'[/tex]
[tex]130^{\circ}=m\angle A'[/tex]
Therefore the degree measurement of angle A' is 130°.
