Answer: 
Step-by-step explanation:
Given
The area of the square is 
Suppose a is the side length of the square
The area of the square is given by

So, we can write

length of each side is 
X=side length
6x^2 = surface area = 150
x^2 = 150/6=25
x=sqrt(25)=5
Answer: 4,280
Step-by-step explanation:
Hi
15% of 30 = 4.5
30% of 45= 13.5
60% of 7= 4.2
23% of 20= 4.6
The cross sectional shape is a circle.