Answer:
The correct answer is option 1.  cubic units.
 cubic units.
Step-by-step explanation:
The formula for the volume, V of a right angled cone is given as:

Where, 
 is the radius of the circular base of the cone.
 is the radius of the circular base of the cone.
 is the height of the cone.
 is the height of the cone.
We are given that height is twice of the radius of its base.
Let the radius of base =  units
 units
Now, As per the question statement, 
The height of cone=  units
 units
Putting the values of  in equation (1) to find the volume:
 in equation (1) to find the volume:

Hence, the correct answer is option 1.  cubic units.
 cubic units.
 
        
             
        
        
        
Question:
Karina has recently begun kickboxing and purchased training equipment as modeled in the diagram below. The cylindrical base is 15 inches tall with a diameter of 22 inches. 
Karina wants to fill the base so that it is 85% full. What is the volume of the base that she is filling? (Find 85% of the volume).
Answer:

Step-by-step explanation:
Given
 -- height
 -- height
 -- diameter
 -- diameter
Required
85% of the volume
First, calculate the radius


The volume (V) is then calculated using:



85% of the volume is:



 
        
             
        
        
        
Answer:
12.5
Step-by-step explanation:
see attached image
 
        
             
        
        
        
Answer:
its a simple for me 
Step-by-step explanation:
2+144 i
 
        
             
        
        
        
U . v  = |u| . |v| cos 60   = 10 * 8 * 0.5 = 40   This is called the scalar (or dot) product.