Question

Triangle ABC has the side of lengths of 6,8,9.
HGI is similar to ABC which has the side length of 12, 8, and its missing one length. What is the missing number. Can someone explain how to find that number.

Answer 1

the sides of similar triangles are in the same proportion

according to your data
the two triangles cannot be similar since
6 : 12 ≠ 8 : 8

check for typos

Answer 2

Thank you sow much