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Futures abc form
∫AD is the center line on the side of BC, and AC=2BC.

∴BD=CD

Let BD=CD=x and AB=y, then AC=4x.

There are two situations: ①AC+CD=60, AB+BD=40.

Then 4x+x=60 and x+y=40.

Solution: x= 12, y=28.

That is, AC=4x=48 and AB=28.

②AC+CD=40,AB+BD=60

Then 4x+x=40 and x+y=60.

Solution: x=8, y=52.

That is, AC=4x=32, AB=52 and BC=2x= 16.

At this time, it does not conform to the triangle trilateral relation theorem.

To sum up: AC=48, AB=28.

Triangle law

Triangle Law is a law that was put forward by Qiu Hao in 2009 and is suitable for futures trading. The law is expanded in both space and time directions through the time dimension to form a triangle. The formation and evolution of the trend are quantitatively explained by the angle and side length of the triangle.

The function of this law is to judge the direction and potential of future trend through the angle and form of graphics in the early stage of the market. Use mathematical geometry to make a logical explanation of what people often say is "disk feeling"