missing angles our learning objectives today to calculate missing angles on a straight line, around...

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Missing Angles Our learning objectives today •To calculate missing angles on a straight line, around a point and in a triangle. •To use a protractor to draw and measure acute and obtuse angles to the nearest degree.

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Page 1: Missing Angles Our learning objectives today To calculate missing angles on a straight line, around a point and in a triangle. To use a protractor to draw

Missing Angles

Our learning objectives today•To calculate missing angles on a straight line, around a point and in a triangle.•To use a protractor to draw and measure acute and obtuse angles to the nearest degree.

Page 2: Missing Angles Our learning objectives today To calculate missing angles on a straight line, around a point and in a triangle. To use a protractor to draw

What do you need to know?Angles in a triangle add up to.................

180°

Angles on a straight line add up to.......180°

Angles around a point add up to.............360°

Page 3: Missing Angles Our learning objectives today To calculate missing angles on a straight line, around a point and in a triangle. To use a protractor to draw

Calculate the missing reflex angle

47°

313°

Page 4: Missing Angles Our learning objectives today To calculate missing angles on a straight line, around a point and in a triangle. To use a protractor to draw

Calculate the missing straight line angle

69° 111°

Page 5: Missing Angles Our learning objectives today To calculate missing angles on a straight line, around a point and in a triangle. To use a protractor to draw

Calculate the missing reflex angle

126°

234°

Page 6: Missing Angles Our learning objectives today To calculate missing angles on a straight line, around a point and in a triangle. To use a protractor to draw

Calculate the missing triangle angle

54°

89°

37°

Page 7: Missing Angles Our learning objectives today To calculate missing angles on a straight line, around a point and in a triangle. To use a protractor to draw

Calculate the missing straight line angle

42°

103°35°

Page 8: Missing Angles Our learning objectives today To calculate missing angles on a straight line, around a point and in a triangle. To use a protractor to draw

Missing Angles

Our learning objectives today•To calculate missing angles on a straight line, around a point and in a triangle.•To use a protractor to draw and measure acute and obtuse angles to the nearest degree.

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