The sum of two adjacent sides is 11 inches, so the long sides are 9 inches. The "unknown number" must be 12.
Use distance formula
=√(3-3)^2 +(-4-4)^2
=√64
=8
Answer:
8 < x < 16
Step-by-step explanation:
Consider an angle slightly less than 180 between the 4 and 12 ft sides. The measure between the 2 end points is slightly less than the total of the two sides. So the greatest length is 16.
Consider an angle slightly more than 0 between the 4 and 12 ft sides. The measure between the 2 end points is slightly more than the difference between the two sides. So the lowest length is 8.
