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.

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Presentation transcript:

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.

What do you need to know? Angles in a triangle add up to ° Angles on a straight line add up to ° Angles around a point add up to °

Calculate the missing reflex angle 47 ° 313°

Calculate the missing straight line angle 69 ° 111 °

Calculate the missing reflex angle 126 ° 234 °

Calculate the missing triangle angle 54° 89 ° 37°

Calculate the missing straight line angle 42° 103 ° 35°

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.