Prove The unique element of R of smallest size is 0. 2. The elements of R of the second-smallest size are precisely the units of R. 3. The elements of R of the third-smallest size are irreducible.

b) k’(6, 4); l’(3, 3)

step-by-step explanation:

a 270° clockwise rotation maps every point (x, y) to (y, -x). (it negates the x-coordinate and then switches it and the y-coordinate.)

this means the endpoints of the side congruent to kl, k' and l', would be mapped as:

k'(-4, 6)→(6, 4)

l'(-3, 3)→(3, 3)

i’m sorry but i don’t know sorry

i think it’s c i believe