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November 19th, 2018, 11:12 AM  #1 
Newbie Joined: Nov 2018 From: Indianapolis Posts: 15 Thanks: 0  two questions involving geometry and algebra
Please help with some high school geometry questions guys. thanks.

November 19th, 2018, 12:31 PM  #2 
Newbie Joined: Nov 2018 From: Indianapolis Posts: 15 Thanks: 0  
November 19th, 2018, 01:56 PM  #3 
Senior Member Joined: Dec 2015 From: Earth Posts: 274 Thanks: 31 
As i see the rectangle is a square and there are five parts of $\displaystyle x$ Write $\displaystyle 5x=10$ and $\displaystyle x=2$ Area of circle equals $\displaystyle \pi r^2$ and area of rectangle equals $\displaystyle 24r^2$ Wasted area of metal equals $\displaystyle 24r^2  4\pi r^2$ $\displaystyle 24r^2 P=24r^2  4\pi r^2$ where P is the percentage $\displaystyle P=\frac{1144}{24} \%$ 
November 19th, 2018, 07:03 PM  #4 
Global Moderator Joined: Oct 2008 From: London, Ontario, Canada  The Forest City Posts: 7,885 Thanks: 1088 Math Focus: Elementary mathematics and beyond 
$\displaystyle \frac{5x}{10}=\frac{10}{x}$ $\displaystyle P_w=\frac{24r^24\pi r^2}{100}$ 

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