Help help help help help help help please

270

Step-by-step explanation:

The figure B is just one 90° rotation away from becoming A, i.e.,

If we rotate B 90° counterclockwise, we get A.

To obtain the same figure after rotating it (counterclockwise or clockwise), the minimum degrees required are 360

So, B becomes A after 90° of rotation, while A becomes A after 360° rotation (in the same direction)

That means,

(angle of rotation is the angle which A turns about in order to line itself with B)

_________________

That makes it 270°

step-by-step explanation:

step-by-step explanation: