I would personally use 4/20 but it would not be the same according to the use of the human brain of not having the same thought process
Easiest way to solve these problems would be setting up a proportion.
Let x = ... well... our missing x
Now, we crossmultiply.
6x = 27(2)
6x = 54
x = 54/6
x = 9
im not going to give u the answer but all you do is
step by step :
#1. D2- (-6*2),(0*2)=(-12,0)
(3*2), (-9*2)= (6,-18)
(12*2),(4*2)=( 24,8)
Answer:523.6
Step-by-step explanation: V = 4/3 r^3