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

asked Jan 10, 2021 144k views

3 votes

4.9k points

Please log in or register to add a comment.

1 vote

Answer:

Explanation:

7.6

5.0k points

3 votes

Answer:

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

Mellie answered Jan 13, 2021

5.6k points

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

5.9m questions

7.7m answers