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Let  be the center of equilateral triangle  A dilation centered at  with scale factor  is applied to triangle  to obtain triangle  Let  be the area of the region that is contained in both triangles  and  Find 

 Jan 19, 2021
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This is probably the question:

 

Let G be the center of the equilateral triangle XYZ. A dilation centered around G with scale factor -2/3 is applied to triangle XYZ to obtain triangle X’Y’Z’. Let A be the area of the region that is contained in both triangles XYZ and X’Y’Z‘. Find A/[XYZ].

 

And here's the answer:  https://web2.0calc.com/questions/help_54234#r3

 Jan 20, 2021

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