A child is trying to stack two uniform wooden blocks,12 cm in length,so they will protrude as much as possible over the edge of a table,without tipping over,as shown in the figure.What is the maximum possible overhang distance d? 
Definitions:
Least Squares Method
A statistical technique used to determine the best-fitting line that minimizes the sum of the squared differences between observed and estimated values.
Scatter Diagram
A graphical representation of two variable data points that allows for the visualization of any correlations or patterns between them.
Fit Best Method
The Fit Best Method refers to the process of adjusting a model's parameters so that it best fits a given set of data.
Point-intercept Method
A technique in ecology used for estimating the abundance or cover of plant species by recording their presence at points along a transect line.
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