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Find the area of the shaded region.

 

 Aug 16, 2020
 #1
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Easy pickings

 

First we find the area of the big triangle (the one that has both the not shaded and the shaded)

 

20^2=400

 

400/2=200

 

Next we should find the area of the not shaded triangle.

 

15x10=150

 

150/2=75

 

200-75=125

 

Yay!

 Aug 16, 2020
 #2
avatar+28021 
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Area of large triangle - area of smaller triangle

1/2  20 * 20      -   1/2  10 * 15   =    shaded area  

 Aug 16, 2020

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