1 Triangle ABC and triangle DEF are similar.
B
Which proportion must be true?
А
EF
DF
BC
АС
B
AB
DE
-
BC
DF
С
AC
AB
DE
DF
D
AB
BC
EF
DF

d

step-by-step explanation:

i used the pitagoras theoreme

answer: c.  

step-by-step explanation:

mixtures containing substances that get attracted to magnet can be separated using a magnet. we can separate iron from a mixture of sand and iron, as only iron attracts to the magnet.