Question

What is the scale factor from triangle ABC to triangle DEF
A. 3 B.4 C.5 D6

Answer 1

A

Explanation:

The scale factor is measured as the ratio of corresponding sides between sides of ΔDEF and ΔABC, that is image to original, thus

`(ED)/(BA)` =
`(6)/(2)` = 3

`(DF)/(AC)` =
`(9)/(3)` = 3

`(EF)/(BC)` =
`(10.83)/(3.61)` = 3

The scale factor of ΔABC → ΔDEF is 3