(√3 + √11)² + (√3 - √11)²
- (a+b)² = a² + b² + 2ab 
- ( a - b )² = a² + b² - 2ab 
<em>Now </em><em>,</em>
(√3 + √11)² + (√3 - √11)²
(3 + 11 + 2√3√11)+ (3 +11 - 2√3√11)
14 + 2√33+ 14 - 2√33
14 + 14 = 28
Hence , The value of (√3 + √11)² + (√3 - √11)² is 28  . 
 
        
                    
             
        
        
        
Using sine law: 
9/sinc = 15/sin22 
sinc = 9sin22 / 15 = 0.225 
so c = sin^-1(0.225) = 12.99 degrees ~~ 13 degrees
if B was required:
B = 180  - C - A ~~  145 
        
             
        
        
        
200 is the answer i know this because 40%of 200 is 80
        
                    
             
        
        
        
Answer:
You are building your kids a small desk, where the width is 1/3 of its length. The length of the desk is 6 feet. What is it’s width? What is the area of the desk?