Can someone please help me with this? Thank you!! <3

The third prime factor is 5.

Step-by-step explanation:

What you have so far is 18

You need to multiply 18 by something to get 90

The easiest way about finding out what the fact is is to set up this equation

18*x = 90                 Divide by 18

x = 90/18

x  = 5                        5 is a prime factor, you don't need to break it down.

x=9

step-by-step explanation:

1)is not similar since corresponding sides are not in the same ratio

2)are similar since corresponding sides are in the same ratio and corresponding angles are equal

hope it will

#faazmessi