Question

50 POINTS PLEASE HELP. Given that ∆ABC ≅ ∆DFE, find the length of side DF.

Show the equation and ALL algebra used to solve for the length of DF.
(5 points: 1 point for correct equation, 3 points for correct algebra process, 1 point for correct length of DF.)
You must show all work to receive full credit

Answer 1

the length of side DF is 19

I hope this helps.

Step-by-step explanation:

you first need to find what x=

sides AB=DF AC=DE BC=FE

so we can say that 3x+1=19

3x+1=19

-1 -1

3x=18

÷ by 3

x=6

then DF os 2x+7

so 2(6)+7

12+7=19