Which quadrilateral with side lengths shown will have a perimeter of 20 meters?

6 m, 5 m, 4 m, 6 m
7 m, 4 m, 4 m, 6 m
3 m, 7 m, 3 m, 7 m
6 m, 3 m, 5 m, 5 m

3 m, 7 m, 3 m , 7 m

Explanation:

Perimeter is when you add all the sides together or it is the sum of the outside lengths.
In this case, add the numbers together and see if you can add up to 20 meters.

a) 6+5+4+6=21

b) 7+4+4+6= 21

c) 3+7+3+7= 20

d) 6+3+5+5= 19

Only c works out to 20 so that's the answer.

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