Question

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

Answer 1

Explanation:

7.6

Answer 2

7.6 centimeters

Explanation:

2.5 + 1.8 + 9 + x = 20.9

13.3 + x = 20.9

x = 20.9 - 13.3

x = 7.6