Answer:

Step-by-step explanation:
We see that diagonal AB is also the hypotenuse of a triangle where the other 2 side lengths are 4 and sqrt{45}. Using the Pythagorean theorem, we get that diagonal AB is 
Answer:
Step-by-step explanation:
To find slope, use two points.
Point A
and Point B
.
Slope (m) =
.
Answer:
C- The surface area is increased by 4 times
Step-by-step explanation:
Answer:
Around 30.16ft
Step-by-step explanation:
Using the formulas
C=2πr
d=2r
Solving for C
C=πd=π·9.6≈30.15929ft