An airplane travels 3270 kilometers against the wind in 5 hours and 4270 kilometers with the wind in the same amount of time. What is the rate of the plane in still air and what is the rate of the wind?

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)

the answer will be 80.