Triangle ABC is translated 2 units to the right on a coordinate plane to form triangle DEF. The measure of AB = 6 units, BC = 5 units, CA = 4 units. What is the measure of DE in the image? (number only, NO letters or symbols)

The measure of AB = 6 units, BC = 5 units, CA = 4 units,

Step-by-step explanation:

12

Step-by-step explanation:

de and ab are coresponding  so multiply 6 by 2

second option

step-by-step explanation:

the measures of a triangle equal 180. use that to find x.

2x+3x+4x=180

9x=180

9x/9=180/9

x=20

now you know x, you know angle a is 40°, angle b is 60°, angle c is 80°.

because angle a is 40°, the first option doesn't work.

because angle b is 60°, the second option does work.

when you add angle a and b, you get 100°. complementary means it equals 90°, so the third option doesn't work.

when you add angle a and c, you get 120°, which is not 100.