Answer: 23
Step-by-step explanation:
 
        
             
        
        
        
Answer: The answer is 11 1/24 or in decimal form 11.04
Step-by-step explanation: 
 
        
                    
             
        
        
        
Answer: i think its either 3:5 or 1:3 or there just not similar
Step-by-step explanation: 
 
        
             
        
        
        
Answer:
<h2>x = 437.3 ft</h2>
Step-by-step explanation:
Look at the picture.
Use cosine:

We have a measure of the angle and length of the hypotenuse:


Substitute:
 <em>multiply both sides by 500</em>
                 <em>multiply both sides by 500</em>

 
        
             
        
        
        
The general formula for the lateral surface area of a regular pyramid is:

Where:
p=perimeter of a base
l=slant height
a.
a=3ft
l=4ft
p=5*a=5*3=15ft

b.
a=2.5ft
l=4ft
p=6*a=6*2.5=15ft

c.
a=1.9ft
l=4ft
p=8*a=8*1.9=15.2ft

d.
Based on a lateral surface area the blue umbrella is best choice. But, the best umbrella overall is the one with the greatest base area. General formula for regular polygon is:

For pentagon:
A=15.48ft^2
For hexagon:
A=16.24ft^2
For octagon:
A=17.43ft^2
Blue umbrella is still best choice.