△ABC∼△DEF . Find DF.DF.
![ABCDEF Find DFDF class=](https://us-static.z-dn.net/files/d96/3099a0d18b6fb6c5700a8736b536d69a.png)
Answer:
Step-by-step explanation:
since they are similar triangle use this ratio
AB/DE=AC/DF
4/12=8/3(x+1)
do cross multiplication
12*8=3*4(x+1)
96=12(x+1)
96=12x+12
96-12=12x
84/12=x
7=x
substitute the value of x
3(x+1)
3(7+1)
3*8
24