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How do you find the side of a triangle?
To find the degree of angle of a side of a triangle, a protractor is needed to measure the angle. Place the '0' on the protractor on the point of the angle and look at the top part to determine degree of angle. To measure the length of a triangle side, a simple ruler can be used to measure the length.
What are the steps to use to measure an angle using a protractor?
To measure an acute or obtuse angle:Put the cross-hairs at the centre of the base line of the protractor on the point of the angle;Align one zero on one arm of the angle (keeping the cross-hairs in place) with the circular part of the protractor over the other arm;Read off the angle of the other arm with the scale that starts at 0o on the first arm.To measure a reflex angle:Measure the angle (of the small angle) between the arms as above;Subtract the found angle from 360o.Note:The base line of the protractor is the straight line marked on the protractor that runs from 0o to 180o; half way along this line will be a perpendicular line towards the 90o mark which may touch or cross the base line - this point is the "cross-hairs".To draw a given angle:To draw an acute or obtuse angle:Draw one arm of the angle;Put the cross-hairs at the centre of the base line of the protractor on the end of the arm that forms the point of the angle;Align one zero on the drawn arm of the angle (keeping the cross-hairs in place) with the circular part of the protractor where the other arm should go;Mark the angle of the other arm with the scale that starts at 0o on the first arm.Draw in the other arm;Optional: mark the angle (between the lines) with a small arc near the point.To draw a reflex angle:Subtract the angle from 360oDraw as above; except the angle is marked with a small arc round the outside of the arms (instead of between them).
How do you use an angle ruler?
when your using an angle ruler, otherwise known as the protractor, you start by lining up the line (located at hte center of the bottom area) with the point of the angle where the two lines of it meet. then you you line up the line with whatever number it would continue onto. example: L is a 90 degree angle. if u lined up the part of it pointing upward with a number on the curved part of the protractor, it would point directly at 90. My daughter in 5th grade would like me to mention that she answered this question, and i typed it here. she also gave the example.
How do we measure an angle?
A protractor can be used to measure an angle. An angle is basically part of a circle. A complete circle is 360 degrees. A right-angle is 90 degrees, half a circle is 180 degrees, and so on.
How do you you measure angles?
With a protractor. A protactor looks like a semi circle. At the bottom of the the protractor there will be another semi circle but much smaller with a dot in the middle. To learn how to use a protractor or how to measure a circle go to this website http://mathforum.org/library/drmath/view/57664.html It will tell you almost everything on how to measure angles.
