caption: Problem Solving Connect the 9 dots using only four straight lines.
exif: {"Image DocumentName": "Problem Solving Connect the 9 dots using only four straight lines.", "Image ImageDescription": "Experiment until you find a solution. However, we have used 5 straight lines. No matter which dot we start with, we still need 5 lines. Chapter 1.", "Image XResolution": "300", "Image YResolution": "300", "Image ResolutionUnit": "Pixels/Inch", "Image Software": "SlidePlayer", "Image YCbCrPositioning": "Centered"}