You add the lengths of all sides to get perimeter.
Add up the sides.
Add together the 4 sides
Add the four sides.
You add all the distances of the perimiter
just the area around the outside of it so think of the perimiter and add the area so just measure the area and perimiter and add them 2gether
Add all of the sides of the shape together and you have the perimeter.
to find the perimiter you just add up all the sides....Perimiter is the same for every figure.
commutative
Add the lengths of any two adjacent sides, and double the sum.
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The formula for finding the perimiter of a rectangle is add up all of its sides
To find the area of a triangle find the base and the height of the triangle. Then multiply the base by the height, then divide by 2. To find the perimiter of a triangle add together the outside edge of the triangle. To find the area of a triangle find the base and the height of the triangle. Then multiply the base by the height, then divide by 2. To find the perimiter of a triangle add together the outside edge of the triangle.