Question

so I answered some but not sure if they are correct so please help me and the last part I need the answer

Answer 1

x=7

Step-by-step explanation

As the triangles are similar

`\begin{gathered} AC=DF \\ AB=DE \\ BC=EF \end{gathered}`

in the same way, the angles are the same

so

`\begin{gathered} m\measuredangle C=m\measuredangle F \\ \text{replace} \\ 2x+14=4x \\ \text{solve for x} \\ \text{subtract 2x in both sides} \\ 2x+14-2x=4x-2x \\ 14=2x \\ \text{divide both sides by 2} \\ (14)/(2)=(2x)/(2) \\ 7=x \end{gathered}`

Hence, when x= 7 the triangles are congruent.

the sides have 2 sides at common and one side, so

`\text{SAS}`

I hope this helps you