Answer:
20 feet long
Step-by-step explanation:
To solve this you need to use the Pythagorean theorum,
, where c is the length of rope needed and A and B are the side lengths. Think of it like a right triangle.
So, the equation is

Which is then


And the possible values of c are 20 and -20.
From here we know the answer cannot be -20 because you cannot have a negatively long length of rope, so the answer must be 20 feet.
Okay what you wanna do it multiple 4.2 and 3.9. if it says "by" it means multiple
No because if a number is a whole number then it is also a rational number and an integer
The volume of a sphere is:
V=(4πr^3)/3, and you are told that r=5in so
V=(4π125)/3
V=500π/3 in^3
V≈523.60 in^3