Question

Find the value of abc-def
(I need work shown)

Answer 1

Hello,

Explanation:

Since ABC is simular to DEF ,

`(AB)/(DE) =(AC)/(DF) =(BC)/(EF) \\\\(AB)/(DE) =(x)/(11.5) =(2)/(9.2) \\\\(x)/(11.5) =(2)/(9.2) \\\\x=(2*11.5)/(9.2) \\\\x=(5)/(2) \\\\x=2.5\\`

Answer 2

x = 2.5 cm

Explanation:

In Similarity triangles, the ratio of corresponding sides of the triangles are in same.

`\sf (AC)/(BC)=(DF)/(EF)\\\\\\(x)/(2)=(11.5)/(9.2)\\\\\\x = (11.5)/(9.2)*2\\\\x = 2.5 \ cm`