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Three sides of a quadrilateral measure 2.5 centimeters, 1.8 centimeters, and 9 centimeters. If the perimeter of the quadrilateral is 20.9 centimeters, what is the length of the fourth side?7.6 cm 15.7 cm 7 cm 34.2 cm

Respuesta :

agarwalmeena200

Answer:

7.6 centimeters

Step-by-step explanation:

2.5 + 1.8 + 9 + x = 20.9

13.3 + x = 20.9

x = 20.9 - 13.3

x = 7.6

Answer:

Step-by-step explanation:

7.6

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