## nanaheads 3 years ago In the figure, ΔABC ~ ΔDEF. Solve for x.

2. Grazes

Make a proportion based on the fact that they are similar. Turn the bottom triangle until the triangles match and compare the sides. The proportion should be 16/8=x/3

3. huneya

do cross multiplication

So the answer should be b=4?

5. Grazes

|dw:1343161960665:dw| Try again.

6. huneya

16x 3 /8

7. Grazes

Nana. Did you check your work?

So it's 6?

9. huneya

yes

Thank you so much! Can you help me with another one?

11. Grazes

Good job. Give yourself a pat. Do you understand how I made the proportion, though?

Yes I did!

14. Grazes

Try to make a proportion yourself after matching up the triangles. I'll tell you whether you got it right or not ;)

15. huneya

x-3/4 = 12/3

16. Grazes

Huneya. Please try to help her without guessing for her :/ At any rate, huneya's attempt was wrong.

17. huneya

no its not @Grazes

I got 16... I think that's wrong.

so it's 19? I was close.

20. Grazes

Huneya's proportion was correct.. to a degree. It was only right because they were special similar triangles

21. Grazes

|dw:1343162820034:dw| That'd be the correct proportion if you needed to show your work on a test.

So it's 19?

23. Grazes

Yep.