Could someone with this question!

I added a screenshot of the question

Part (A):
Since the two figure are similar, therefore, we will use the similarity proportionality to get the unknown side as follows:


x = 

Part (B):
Since the two figures are similar, therefore, we will use similarity proportionality to get the unknown sides as follows:


x = 

y = 

Hope this helps :)

I'll say b) log(- that if not let me know what i can do