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
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