Question

PLEASE PLEASE PLEASE HELP ​

Answer 1

FDE = 116 degrees

Explanation:

If FDE and CDE are supplementary, then their total would be 180 degrees. Thus, we can set up the following equation:

CDE + FDE = 180

3x + 10 + 6x + 8 = 180

9x + 18 = 180

9x = 162

x = 18

Now that we know "x = 18", we can find the measurement of FDE:

FDE

6x + 8

6(18) + 8

116