triangle....

[patricialec]

If DEF is similar to ABC and the length of side DE is 6cm. If the area of ABC is 5 square centimeters, what is the area of DEF?

I know about 1/2 bh. but I'm not sure what to do after this step or how I get to the answer. :x :shock:

 

[patricialec]

the height of ABC is 2 cm....sorry ... :roll:

 

[Denis]

Not enough info.