Answer:
the correct answer is A
Step-by-step explanation:
If the two triangles are similar you can use a proportion to solve for the length of the legs.

=

Now, you would cross multiply to get
4x=18
Now, you simplify that using the division property of equality.
You end up with
x=4.5
Therefore, the legs of the triangle with a base of 9 inches will each be 4.5 units long.
3.3855 x 10^2
move the decimal over 2 times
338.55
or
3.3855 x 100 = 338.55