there is to right traingles and we have to find the missing side

the first traingle has 4 on the bottom and 2 as its height the second trangle has a 9 on the bottom and the x as the height which number is x.

a.4.5
b.18
c.8
d.2.25
i think a

3 answers

here it is ms sue
Now I understand.

Yes, a is correct.
ok now can u look at the new question i put up please