How To Draw Reflex Angles Using A Protractor

June 20, 2021

A review of acute and obtuse introduction of reflex. Draw the line BC.

Drawing Angles Less Than 180 With A Protractor Drawing Angles Teaching Math Protractor

Clockwise and you have got your desired angle.

How to draw reflex angles using a protractor. Using a ruler join the mark you made to the end of the line that was in the centre of the protractor. Join the vertex B to the small dot with a ruler to form the second arm BC of the angle. Then make your protractor up side down and put under 6955 6955 13122020 Math Primary School answered How to draw a reflex angle using a protractor 2.

Each question depicts one arm of an angle superimposing the baseline of the protractor. I am a maths teacher covering for fallen colleagues and a maths tutor tuning the maths brains up a tone. Reflex angle is an angle ie.

A great demonstration of how to draw reflex angles using a protractor. Larger than 180 but smaller than 360. Subtract the reflex angle from 360º.

GCSE EQAO GlobalMathInstituteFactors and Prime Numbers. Example 2 Draw an angle of 120. Draw angles with a protractor Part 2 Calculating angles on a line or around a point.

Draw angles with a protractor 1. For drawing such an angle what one does is use the protector in reverse direction ie. Measure acute and obtuse.

Make sure that one of the angle lines goes right through the zero. Angles within a shape. Find 60º on the scale and mark a small dot at the edge of the protractor.

Line up the vertex corner of the angle with the cross section of the protractor. About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy Safety How YouTube works Test new features Press Copyright Contact us Creators. Place the centre of the protractor at the vertex B and adjust the base line to be aligned to BC.

Calculating angles within a shape 1. Find the baseline of the protractor and line it up with the baseline of the shape or angle Place the midpoint of the protractor on the vertex of the angle Line up one side of the angle with the zero line of the protractor where you see the number 0 Read the degrees where the other side crosses the number scale. It appears as the one shown below.

To draw the reflex angle 250 we first draw the angle obtained by subtracting 250 from 360 which is 360 250 110. Compare and order acute obtuse and reflex angles. AnswerI will tellStep-by-step explanationfirst take your protractor and keep it straight and draw a line.

Reading angles on a protractor Part 1 Reading angles on a protractor Part 2 Reading angles on a protractor Part 3. Mark the angle with a small arc as shown below. Upside down asshown below and measures the angle 360 225 135 in reverse direction ie.

Angle greater than 180º and less than 360º proceed as follows. To draw a reflex angle ie. A review of acute and obtuse introduction of reflex.

Measuring angles accurately In this video you will learn how to use a protractor to measure angles accurately. In these worksheets students use a protractor to draw and measure angles and determine if the angles are acute obtuse straight or 90 degrees. Explore how to use a protractor and identify acute obtuse straight and reflex angles.

Find the indicated measure on the inner scale of the protractor. Assume one has to draw an angle of 225. Draw a straight line using a ruler.

Measuring and drawing angles with a protractor.

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