maths nsw class 7 chapter 2 part 1
TRANSCRIPT
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Chapter 2: Angle relationships(Part 1)
Saumil S. Sharma
B.Sc., MBA
NSW Syllabus for the Australian CurriculumCambridge MATHS for Year 7
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Points, Lines, Intervals and Angles
• The fundamental building blocks of geometry are the point, line and plane.
• They are the basic objects used to construct angles, triangles and other more complex shapes and objects.
• Points and lines do not actually occupy any area but can be represented on a page using drawing equipment.
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Points, Lines, Intervals and Angles
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Points, Lines, Intervals and Angles
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Points, Lines, Intervals and Angles
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Points, Lines, Intervals and Angles
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Measuring and classifying angles
• Angles are usually described using the unit of measurement called the degree, where 360 degrees (360°) describes one full turn.
• The idea to divide a circle into 360° dates back to the Babylonians, who used a sexagesimal number system based on the number 60. Because both 60 and 360 are numbers that have a large number of factors, many fractions of these numbers are very easy to calculate.
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Measuring and classifying angles
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Measuring and classifying angles
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Measuring and classifying angles
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Measuring and classifying angles
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Measuring and classifying angles
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