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How do you know when to use the big or small numbers on protractor when measuring an angle?
Wiki User
∙ 12y ago
When the angle you are measuring is obviously an obtuse angle (angle above 90 degrees, or when you draw a box in the angle and it turns out bigger than it's supposed to) you use the big numbers. When the angle is obviously acute (opposite definition of obtuse), you use the little numbers.
Wiki User
∙ 12y ago
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How do you use a protractor to measure quadrilateral angles?
Line up the vertex, then if it is an acute angle use the small number, obtuse use the big number, next all you have to do is bring your finger up to where the angle line is and see what number, big or small it lines up with on the protractor!
What are the steps to use to measure an angle using a protractor?
Place the center of the protractor on the vertex of the angle. Align the base of the protractor with one side of the angle. Read the measure where the other side of the angle intersects with the protractor scale. Note the measure in degrees.
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).
Where can you find a picture that shows how to use a protractor?
go to this link. it has a small video: http://www.mathsisfun.com/geometry/protractor-using.html
When was Small Angle Shades created?
Small Angle Shades was created in 1758.
Is a protractor used for measuring small distances?
Not normally because it is used for measuring the sizes of angles
How do you use a protractor to measure quadrilateral angles?
Line up the vertex, then if it is an acute angle use the small number, obtuse use the big number, next all you have to do is bring your finger up to where the angle line is and see what number, big or small it lines up with on the protractor!
What are the steps to use to measure an angle using a protractor?
Place the center of the protractor on the vertex of the angle. Align the base of the protractor with one side of the angle. Read the measure where the other side of the angle intersects with the protractor scale. Note the measure in degrees.
How can you draw an angle of specified measure?
Use a protractor, or computer software such as GeoGebra (available for free).To draw an an angle of specified measure with a protractor:Draw a straight linePlace a dot at one end of the line. The dot represents the vertex of the angle.Place the center of the protractor at the vertex dot and the baseline of the protractor along line you drew (an arm of the angle).Find the required angle on the scale and then mark a small dot at the edge of the protractor.Join the small dot to the vertex with a ruler to form the second arm of the angle.Label the angle with capital letters.
How do you draw a 260 degree angle?
Assuming you have a 180o protractor:A full circle is 360o, so the obtuse angle that makes a full circle with the 260o reflex angle is 360o - 260o = 100o.So measure an angle of 100o and draw it, but mark the reflex angle with a small arc:Draw one arm of the angle;Put the centre (cross-hairs) of the protractor at one end of this line;Rotate the protractor about its centre until one of the zero lines is along the line already drawn.Mark 100o using the scale that has 0o on the lineremove the protractor and draw the line from the end of the line where the centre was to this mark.Draw a small arc around the "outside" of the angle (from one line to the other, near the point where the lines meet) to show it is the reflex angle that has been drawn.
How do you draw a reflex angle that measures 245 degrees?
If you have a 360o protractor, you draw one side of the angle, measure 245o round from this line and then draw in the other side of the angle, and then mark a small arc around the reflex angle. If you only have a 180o protractor, you start again by drawing one side of the angle; then you measure 360o - 245o = 115o the "wrong way" round from this line to give the 245o the right way and draw in the other side, and then mark a small arc around the reflex angle.
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).
Where can you find a picture that shows how to use a protractor?
go to this link. it has a small video: http://www.mathsisfun.com/geometry/protractor-using.html
What is the use of the measuring spoon?
Measuring spoons are for measuring small amounts of ingredients accurately.Measuring spoons are for measuring small amounts of ingredients accurately.
Is a large protractor more accurate than a small one?
absolutely not.
Can you use a protractor to measure sun light bending?
No, any bend to sunlight due to gravity would be too small to measure with a normal size protractor. Theoretically it would be possible to do so, but you'd need a huge protractor--I'm talking probably hundreds of thousands of kilometers across.
When was Small Angle Shades created?
Small Angle Shades was created in 1758.
