Determine whether $\mathrm{\u25b3}ABC{\textstyle \phantom{\rule{1em}{0ex}}}\text{and}{\textstyle \phantom{\rule{1em}{0ex}}}\mathrm{\u25b3}DEF$ are similar for each set of measures. If so, identify the similarity criterion.

1.$m\mathrm{\angle}A=20,m\mathrm{\angle}C=20,m\mathrm{\angle}D=40,m\mathrm{\angle}F=40$

2.$m\mathrm{\angle}A=20,m\mathrm{\angle}C=4u,m\mathrm{\angle}D=20,m\mathrm{\angle}F=40$

3.$AB=20,BC=40,m\mathrm{\angle}B=53$ ,

$DE=10,EF=20,m\mathrm{\angle}E=53$

1.

2.

3.