What is the value of x?

x=70°

Step-by-step explanation:

These are supplementary angles, meaning they add up to 180°

45+(2x-5)=180°

45+2x-5=180

40+2x=180

2x=140

x=70°

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