Question

I need help with this problem please

Answer 1

So for this we will need to do two proportions. The first one will be
`(6)/(11) =(12)/(12+EG)`

Firstly, cross-multiply. Your equation should look like this:
`72+6(EG)=132`

Next, subtract 72 on each side to get
`6(EG)=60`

Lastly, divide 6 on each side, and then your answer should be
`EG=10`

Nextly, your next proportion is gonna be
`(11)/(15) =(22)/(22+GC)`

You'll be repeating the similar steps as before, so I'll just go thru it:

`242+11(GC)=330\\ 11(GC)=88\\ GC=8`

Now that we got all parts of the side, we just need to add them up:

`12+10+8=30`

In short, the answer is D. 30 ft.