Answer: meter
Step-by-step explanation:
 
        
             
        
        
        
Answer:
The height of the cone is 10.9 cm
Step-by-step explanation:
step 1 
Find the height of the cone
Applying the Pythagoras Theorem





therefore
The height of the cone is 10.9 cm
 
        
             
        
        
        
To compare fractions , you need to have same denominator.
Just multiply the Numerator and denominator of the fraction by  required number so as to get the common denominator.
for example, In this case , the common denominator is 12.
the first fraction is converted as shown, 5/3=5*4/3*4=20/12
similarly, you can convert others. 
Once you have common denominator, just compare numerators.
        
             
        
        
        
Answer: 42 cm3
Step-by-step explanation:
 
        
             
        
        
        
Answer:
Cos B = 4/5
Step-by-step explanation:
From the question given above, the following data were obtained:
Sine B = 3/5
Cos B =?
Recall:
Sine B = Opposite / Hypothenus 
Sine B = 3/5
Therefore, 
Opposite = 3
Hypothenus = 5
Next, we shall determine the Adjacent. This can be obtained as follow:
Opposite = 3
Hypothenus = 5
Adjacent =? 
Hypo² = Adj² + Opp²
5² = Adj² + 3²
25 = Adj² + 9
Collect like terms 
Adj² = 25 – 9
Adj² = 16 
Take the square root of both side 
Adj = √16
Adjacent = 4
Finally, we shall determine Cos B. This can be obtained as follow:
Hypothenus = 5
Adjacent = 4 
Cos B =? 
Cos B = Adjacent / Hypothenus 
Cos B = 4/5