You measure the sides of the shape you are finding the perimetre of and then add together the measurements. Then you have your answer.
eg: 8cm x 7cm x 3cm x 5cm
8+7+3+5=23
answer is 23cm
The perimeter of any triangle is the sum of its 3 sides
I don't understand why there are so many questions about rectangles' perimeter. You just add the length and the width and double your answer....
The area of a square that has a perimeter of 32m is: 64 m2
in order to find the perimeter of a shape add up all the sides measurements
You can find out how many angles are in a shape by counting how many edges a shape has. for instance.. a square has 4 edges so it has 4 angles
^Perimetre. Outer length of a shape.
The perimetre of a shape is all of the sides aded together.
Add up together its 4 sides
5m Check: 5+5+7+7 = 24m
You add the lengths of all the sides.
length plus width equals perimetre
Yes by working out individual sections and then adding them altogether.
Perimetre of squre is 4*(side) and side is 8 cm so perimetre is 4*8=32cm
4 times the length of its side.
It is the sum of its 4 sides added together
this is stupidinuss
216 cm