http://assets.openstudy.com/updates/attachments/546a1ea4e4b01c57691c2ba5-emmathis-1416241166203-math7.png

^^^^^^^^^^^^^^^^^^^^^^^^^^^^^\
Thats the link to the problem is above.....

And i do give medals

Question

http://assets.openstudy.com/updates/attachments/546a1ea4e4b01c57691c2ba5-emmathis-1416241166203-math7.png

^^^^^^^^^^^^^^^^^^^^^^^^^^^^^\
Thats the link to the problem is above.....

And i do give medals

anonymous · Answer

@micahm

micahm · Answer

if you post the question i can have a better answer for you

micahm · Answer

could you post the question

mathstudent55 · Answer

The perimeter is the sum of the lengths of all sides.
You know the perimeter and the lengths of three sides.
Subtract the lengths of the three known sides from the perimeter to find the missing side.

anonymous · Answer

I cant it has to have that diagram thingy

anonymous · Answer

So what would it be?? @mathstudent55

mathstudent55 · Answer

What is 82 cm - 15.4 cm - 16.2 cm - 28.7 cm = ?
That is your answer.

mathstudent55 · Answer

Just do the subtraction above.

anonymous · Answer

it is 21.7 i thought you add them lol @mathstudent55

anonymous · Answer

let me get you a medal... i just did

mathstudent55 · Answer

Yes, 21.7 cm is correct.

mathstudent55 · Answer

Another way of doing it is to add 15.4 cm + 16.2 cm + 28.7 cm, and then subtract this sum from 82 cm.

anonymous · Answer

oh ok thanks i got 5 more do you want to help.. @mathstudent55