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To measure a reflex angle using a 180-degree protractor, first position the protractor so that its baseline aligns with one side of the angle, ensuring the center point is at the vertex. Measure the smaller angle formed on the protractor, which will be less than 180 degrees. Subtract this measurement from 360 degrees to find the reflex angle. For example, if the smaller angle measures 120 degrees, the reflex angle would be 360 - 120 = 240 degrees.
What else can I help you with?
How could you use the protractor to measure a reflex angle with 283 degrees?
To measure a reflex angle of 283 degrees with a protractor, first, position the protractor so that the vertex of the angle aligns with the midpoint of the protractor. Since a reflex angle exceeds 180 degrees, measure the smaller angle formed by the two lines, which will be 77 degrees (360 - 283 = 77). Then, count clockwise from the 180-degree mark to the 283-degree mark on the protractor to confirm the measurement visually.
How do you measure the 180 angles?
With a protractor
How do you draw a reflex angle?
When an angle is drawn a small arc is normally placed near the vertex between the arms to show the angle. A reflex angle is one greater than 180°, so draw the two arms as normal and then draw a small arc around the vertex of the angle "outside" the arms of the angle, ie around the angle which is greater than 180° If the problem is how to draw the reflex angle with a protractor that only goes up to 180°, then note that "360° - the reflex angle" gives an angle which is less than 180° and can be measure by the 180° protractor. Draw one arm of the angle, measure the calculated angle (eg if the reflex angle was 200°, 360° - 200° = 160°, so measure 160°), draw the other arm, and then draw an arc around the vertex "outside" the arms to show the reflex angle (in the example, the 200° angle).
How do you measure angles that are more than 180 degrees?
Eitheruse a 360o protractor;measure it the other way (the non-reflex angle) and subtract from 360o;[faintly] draw in the 180o line of one arm of the angle, measure from this to the other arm and add 180o.
Do reflex angles measure 180 degrees?
No. A reflex angle starts after 180 degrees and ends just before 360.
How do you calculate a reflex angle using a protractor?
The other side of the reflex angle will be between 0 and 180 degrees. Measure that angle and subtract the answer from 360 degrees.
How do you measure the 180 angles?
With a protractor
How do you draw a reflex angle?
When an angle is drawn a small arc is normally placed near the vertex between the arms to show the angle. A reflex angle is one greater than 180°, so draw the two arms as normal and then draw a small arc around the vertex of the angle "outside" the arms of the angle, ie around the angle which is greater than 180° If the problem is how to draw the reflex angle with a protractor that only goes up to 180°, then note that "360° - the reflex angle" gives an angle which is less than 180° and can be measure by the 180° protractor. Draw one arm of the angle, measure the calculated angle (eg if the reflex angle was 200°, 360° - 200° = 160°, so measure 160°), draw the other arm, and then draw an arc around the vertex "outside" the arms to show the reflex angle (in the example, the 200° angle).
How do you use a protractor to measure angles?
put the protractor on the vertex and look up at the degree's and look belowacute angle =has a measure between 0 degree's and 90 degree'sright angle =has a measure of 90 degree'sobtuse angle = has a measure between 90 degree's and 180 degree'sstraight angle = has a measure of 180 degree'sthat's how you use a protractor to measure angles.
How do you measure angles that are more than 180 degrees?
Eitheruse a 360o protractor;measure it the other way (the non-reflex angle) and subtract from 360o;[faintly] draw in the 180o line of one arm of the angle, measure from this to the other arm and add 180o.
Do reflex angles measure 180 degrees?
No. A reflex angle starts after 180 degrees and ends just before 360.
How do you name angles?
Less than 90 degrees: Acute More than 90 but less than 180: Obtuse More than 180: Reflex Special cases. 90 degrees: Right angle 180 degrees: Line In degrees. Use a protractor to measure angles correctly and accurately.
How do you draw angles greater than 180?
First, if the angle is 360° or more, find the remainder of the angle divided by 360 - this is as 360° represents a full turn. If you have a 360° protractor just measure off the angle. If you only have a 180° protractor, then there are two ways it can be done as the protractor is marked so that 0° - 180° can be measured from either end of the base line: Method 1: excess over 180° 1) Subtract 180° from the angle to get the excess over 180°. 2) Place the protractor on the line, centred on the vertex of the angle on the left of the line, with the top 0°/180° mark on the line. 3) Measure the excess over 180° calculated in step 1 from the bottom 0° mark of the protractor. 4) Draw in the second angle arm - the reflex angle (measured clockwise) is as required. Method 2: acute/obtuse angle of the reflex angle to complete a full turn 1) Subtract the angle from 360° to get the angle which completes the full turn 2)Place the protractor on the line, centred on the angle vertex on the left of the line, with the top 0°/180° mark on the line. 3) Measure the angle to complete the full turn calculated in step 1 from the top 0° mark of the protractor (on the line). 4) Draw in the second angle arm - the reflex angle (measured clockwise) is as required. The above assume a clockwise angle is being drawn from a vertical line with the angle vertex at the bottom. For anticlockwise angles, place the protractor on the right of the line. For a non-vertical line [mentally] rotate the paper so that the first arm of the angle is vertical with the angle vertex at the bottom.
How much does a reflex angle measure?
Between 180 and 360 degrees.
Do reflex angles measure more than 180 degrees?
Yes.
What angel has a measure of 180 degrees?
straight angle
What angle measure is more than 180 degree is what angle?
reflex angle
