Wednesday, May 22, 2013

Unit 1 Day 4

Unit 1 Day 4 
Using surface area of prism, pyramid, cylinder, cone, and sphere in real life 


Quiz: 

  1. Find the surface area of this house:  
     Image 









  1. Find the surface area of this book:  
Image 
   5” 
           
                               10” 
             


2”   








  1. 3.) Find the surface area of this ball:  
Image[Drawing] 

12”   








Answer Key: 

  1. 20 x 25 x 2 = 1,000 
20 x 25 x 2 = 2,500 
50 x 10 x 2 = 1,000 
20 x 10 = 200  

4, 700’ squared 

  1. 5 x 10 x 2 = 100 
2 x 10 x 2 = 40 
2 x 5 x 2 = 20  

160” squared 

  1. 4 x pi x 6 squared 
4 x pi x 36 
12.56 x 36 

452.16” squared  



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