1.

. If the perimeter of the following quadrilateral is 21.8 cm Find the fourth side5 cm3.7cmX1​

Answer»

Answer:

perimeter of quadrilateral = sum of all sides

21.8= 5+ 3.7 +X+ 1

21.8 = 9.7 + x

21.8- 9.7 = x

12.1 CM = forth SIDE

Step-by-step EXPLANATION:

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