Why is it important to ESTIMATE angles?

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Presentation transcript:

Why is it important to ESTIMATE angles? To guide you when you MEASURE the angle! If we identify the angle to be an acute angle Let’s say we estimate that it is about 50° (because an acute angle is between 0 and 90°) If we measure using a protractor and get an angle of 120° then we must have done something wrong!

The Angles Cross 0° 315° 45° 270° 90° 225° 135° 180°

Estimate : 90° + a bit more = 110° Estimating angles: Draw the Cross Type: Obtuse   Type: Reflex   Type: Obtuse Estimate : 90° + a bit more = 110°

Play against the person sitting next to you at estimating the size of each angle – closest wins

Play against the person sitting next to you at estimating the size of each angle – closest wins

Play against the person sitting next to you at estimating the size of each angle – closest wins

Play against the person sitting next to you at estimating the size of each angle – closest wins

Play against the person sitting next to you at estimating the size of each angle – closest wins

Play against the person sitting next to you at estimating the size of each angle – closest wins

Play against the person sitting next to you at estimating the size of each angle – closest wins

Play against the person sitting next to you at estimating the size of each angle – closest wins

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