Answer:
Options B and Option C
Step-by-step explanation:
Translation, rotation and reflection are the rigid transformations in which shape and size of the figure remains unchanged.
While dilation and stretch will change the area of the figure.
Therefore, Options B and Option C will show the Henry's claim incorrect.
100°= angle b(VERTICAL OPPOSITE ANGLE)
100°+x°=180°[co interior angle]
x=180°-100°
x=80°