Answer:

Step-by-step explanation:
To solve this problem, we can use the area of a circle formula as shown below:

<em>A = area</em>
<em>r = radius</em>
<em />
First we need to find the radius. 
The radius is half of the diameter. For this problem, the radius is going to be 3.
Now, plug the values into the equation:


The window's area is 
 
        
             
        
        
        
Hey! So you are going to find the coordinates of P and R
P is (4,0) R is (-6,-4)
Then you can plug it into this formula: (x1-x2)^2 + (y1-y2)^2
Using P and R coordinates that’s:
(4- -6)^2 + (0- -4)^2
10^2 + 4^2
100 + 16=
116
Then you are going to find the square root 
So 116 square root is 10.8 rounding to the nearest tenth
Hope this helps!
        
             
        
        
        
Answer:
Store compressed gas cylinders in cool, dry, well ventilated areas. make sure the temperature of the storage room never exceeds 52°C. Store, handle, and use compressed gas cylinders away from incompatible materials and ignition sources