Find the perimeter of the triangle below. Round your solution to 2 decimal points. Can someone help me?

Question

scarlettred · Answer

Here's the picture

mathstudent55 · Answer

The perimeter is the sum of the lengths.
Can you find the length of side BC?

scarlettred · Answer

not really I'm super confused on what to do

mathstudent55 · Answer

Segment BC is a horizontal segment parallel to the x-axis. Its length is found by simply counting the number of units from point B to point C.

mathstudent55 · Answer

How many units is it from B to C?
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anonymous · Answer

BC is horizontal so you can just subtract the X's from each point. 3-(-3)=BC. 
 Since AB is vertical, you can subtract the Y's. 6-2=AB.  
To find AC you need to use the distance formula.

mathstudent55 · Answer

I just counted the units from left to right. There are 6 units, so the distance from B to C is 6. That means side BC is 6 units long.
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mathstudent55 · Answer

Now can you count how many units are on segment AB to find the length of side AB?
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mathstudent55 · Answer

Once again, counting the units, this time going up, we get 4 units.
Side AB is 4 units long.
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