The answer is D
Let me know if it’s right!
Hello!
To find the side length you use the equation

a is side length
d is diagonal
Put in the number we know

Divide

Multiply
a = 19.091
The answer is 19.09
Hope this helps!
Answer:
a = 2
Step-by-step explanation:
Hope this helps and have a nice day :)
Add -15.9 to both sides so it’ll look like 3.7x=18.87