Question

Triangle ABC is similar to triangle DEF. What is EF? AB= 12 BC= 15 AC= 19, DE= 19.2 DF= 30.4

Answer 1

can you show a figure please?

Answer 2

Corresponding sides of similar triangles are in proportion by definition of similar triangles.

AB is to DE as BC is to EF

AB/DE = BC/EF

12/19.2 = 15/EF

12* EF = 15 * 19.2

Solve for EF.

Note: We knew which sides are corresponding because the correspondence of vertices was given in the similarity statement: Triangle ABC is similar to triangle DEF.

Answer 3

Thanks to you mate know I understand. EF quals 24

Answer 4

That is what I got.