Question

http://ce.byu.edu/courses/hs/GEOM-043-101/secure/imgs/math10-588.gif

3 Questions on this shape:

1. If BH=42, find DE

2. If AB=36, find KE

3. If AB=36, find JF

THANK YOU THANK YOU THANK YOU!

Answer 1

1. DE =7 because there are 6 equal parts so divide 42/6=7
2. use similar triangles. you know the big triangle bh=42 and ab=36 and he=21 (since you found that each section is 7 on the bottom) So set up and inequality and solve->
36/42=x/21 (to solve do 36*21=756/42=18)
So KE=18
3.Do the same from #2 just with a different inequality. ab=36 bh=42 you can find that hf=14 so try setting up the inequality and see if you get it.

Answer 2

So if I do 36/42 = 14/X that will give me my length?

Answer 3

I got 16.3 Im not sure thats right...

Answer 4

Waitt, I re-did it, I did 36/42=X/14 and I got 12.
is that right?