A rectangle is an irregular polygon. I hope I helped you!!!
Answer:
No it won't make a triangle
Step-by-step explanation:
Using pythagorean you have
4^2+5^2=13^2
Which is 41=169
To make a triangle these have to be equal so the sides won't make a triangle
Recall that the median of a set of numbers is the number in the middle of the set, after the numbers have been rearranged from lowest to highest.
From the plot, we get that the number, arranged from lowest to highest are:

The number in the middle of the above set is:

Therefore the median of the given numbers is:

Answer: 42.
21 its 21 because it is 21