Friday, March 25, 2011

chris reyes volume post

Chapter 7.3





Popcorn Lover ;
r= d÷2 v = pi.r.r.h
r =30÷2 v = 3.14x15x15x20
r = 15cm v = 14,130cm³

Jumbo ;

r =d÷2 v =pi.r.r.h
r =20÷2 v =3.14x10x10x40
r =10cm v =
12,560cm³



Chapter 7.4




Outside Circle;
r = d÷2 v = pi.r.r.h
r = 10÷2 v = 3.14x5x5x40
r = 5cm v = 3140cm³
3140cm³-2009.6cm³ = 1130.4cm³

Inside Circle;
r = d÷2 v = pi.r.r.h
r = 8÷2 v = 3.14x4x4x40
r = 4cm v = 2009.6cm³

1 comment:

  1. Good job Chris. Next time, try to add explanation using words. Keep up the good work.

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