Question

Help pls pls pls pls ​

Answer 1

The ratio of angle and sides will be same

• S-A-S congruency

$\\ \rm\lobgmapsto 10:40:8=5:x:4$

$\\ \rm\lobgmapsto 10:40=5:x$

$\\ \rm\lobgmapsto \dfrac{10}{40}=\dfrac{5}{x}$

$\\ \rm\lobgmapsto 10x=200$

$\\ \rm\lobgmapsto x=\dfrac{200}{10}$

$\\ \rm\lobgmapsto x=20$

Answer 2

Answer is 20 degrees