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posting pic right now...

add the lengths all around the figure

34

|dw:1433136112597:dw|

what do you think the answer is? @gabbyalicorn

|dw:1433136200589:dw|

so... -3- i think the first 1 is 25.12 and then the second one is 94.2

stop and think the answer to 2 decimal places

if i am right because i am kind of having trouble a little lol

so 47.1 i divided 94.2 by 2

its close 2 b

I still dont get it

Oh, sorry. :( i did not know it would offend you @triciaal

but you are right... forgive me

Your goal is to find length of that red line.|dw:1433133208001:dw|

You can do so by "split" line into sommething like this:|dw:1433133292825:dw|

then you only have to calculate perimeter of semicircle then add side length of that rectangle.

is there a way to check it like for ex (just making this up) 68.24 - 47.1 or something like that?

Not that I know of.

Okay.

well the semi-circle is 34

wait no thats for the rectangle

Well, so what I said, is it clear? can you find total perimeter now?|dw:1433133488047:dw|

First, what is perimeter of semicircle with radius 4?

8?

How?

|dw:1433133602296:dw|

I said perimeter of semicircle

|dw:1433133652499:dw|

|dw:1433133676207:dw|

Do you know how to do that?

no, im still confused

it's half the circumference

Right?

And you know that \(C = 2\pi r\)
So half circumference would be \(\dfrac{C}{2} = \pi r\)

Here, we have radius of 4, so what's half the circumference?

12.56

what i did wad 2 x 3.14 x 4 divided by 2

Yep. |dw:1433133891727:dw|
Now what about rectangle sides?|dw:1433133936113:dw|

9+8+9= 26 so then im guessing to do \[12.56 \div 26\]

Why divide?

you're right I just multiplied and the answer was way off.

38.56

omg C

:DDD hazaaa!

|dw:1433134238968:dw|

It's cool, and welcome!

You never gave up on me :D