Which transformation will always map a parallelogram onto itself? a. a 90° rotation about its center b. a reflection across one of its diagonals c. a 180° rotation about its center on about its conter d. a reflection across a line joining the midpoints of opposite sides

dc=6 square root of 3 and ac is 12 square root 3

c and d

step-by-step explanation:

square root of 3/2 = 18/c

cross multiply to get 18*2=√3*c

36/√3 * √3/√3 = c

c= 36*√3/3

c=12√3

b

step-by-step explanation:

step-by-step explanation:

i found the koficent of the linear function and i foun c acordind to the strict formula y=kx+c and then i took 2 as an x and replacet it on the formula i found and then foun the y

try soting them out first

step-by-step explanation: