caption: Angles on a straight line
exif: {"Image DocumentName": "Angles on a straight line", "Image ImageDescription": "Angles on a line add up to 180\uf0b0. a. b. This should formally summarize the rule that the pupils deduced using the previous interactive slide. a + b = 180\u00b0 because there are 180\u00b0 in a half turn.", "Image XResolution": "200", "Image YResolution": "200", "Image ResolutionUnit": "Pixels/Inch", "Image Software": "SlidePlayer", "Image YCbCrPositioning": "Centered"}