Answer:
To find the perimeter of a quadrilateral you would add the lengths of each side together.
Example:
The perimeter is the sum or all the lengths.
If there was a rectangle with a length of 5 cm and a width of 3 cm.
To work this out you would first multiply 5 by 2, which is 10. Then you would multiplying 3 by 2, which is 6. Then you would add 6 and 10, which is 16.
1) Multiply 5 By 2.
2) Multiply 3 by 2.
3) Add 10 and 6.