What is the perimeter of the rectangle that has corners at the points(3,2), (3,8), (-4,2) and (-4,8)?

difference of y coordinates=8-2=6

difference of x coordinates =3-(-4)=7

answer is 6×7=42 square units

8121 because

130,000 divided by 16 is 8121

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)