Question

Side Length
(inches)
Perimeter
(inches)
0.5
2
7
?
20

Answer 1

Answer: The missing side is 10.5 inches

Explanation:

Add the side lengths you know 0.5+2+ 7= 9.5

Subtract that from 20 20- 9.5 = 10.5

Don't forget to include the unit length,inches.