the vertex of the angle
The measure of the angle around a point 360 deg
The instrument used to measure the angle between two lines is called a protractor. A protractor typically consists of a semicircular or circular tool with markings for degrees. To measure the angle, the protractor is placed along one line with the center point at the intersection of the two lines, and the angle is read where the second line crosses the protractor.
each measure of the angle at point h has a measure of
To measure an angle: # Align the bottom line of the protractor with one ray of the angle being measured. # Center the central point along the bottom of the protractor with the junction of the angle being measured. # Find where the other ray of the angle crosses the rounded part of the protractor. The numbered mark at which it crosses is the number of degrees of the angle being measured.
To make a 230-degree angle using a protractor, first, place the center point of the protractor at the vertex of the angle. Align one side of the angle with the 0-degree line on the protractor. Then, measure 230 degrees from the 0-degree line, marking the point on the paper. Finally, draw a line from the vertex to the marked point to complete the angle.
Are you talking about the angle A. If you are then at what point of the triangle is the angle A.
To accurately measure and cut a 45-degree angle on a piece of material, you can use a combination square or a miter saw. First, mark the starting point of the angle on the material. Then, use the square or saw to align the 45-degree angle and make the cut following the marked line. It's important to double-check the angle before cutting to ensure accuracy.
An optical plummet is used for transferring points vertically. To use it, first set up the instrument over the point you want to transfer. Look through the eyepiece and adjust the crosshairs to align with a reference point. Then, move the instrument and align the crosshairs with your new target. Make sure to keep the instrument stable and level during the process.
A Cryoscope
To layout a 45-degree angle, start by marking a point on your work surface where you want the angle to originate. Use a framing square or a protractor to measure a 45-degree angle from a reference line. If using a framing square, align one side with the reference line and mark along the other side to create the angle. Alternatively, you can draw a line from the point at a 45-degree angle using a compass to set equal distances from the reference line.
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).
Yes, you can measure 20 degrees on a protractor. A protractor typically has degree markings ranging from 0 to 180 degrees and sometimes up to 360 degrees. To measure 20 degrees, align the protractor's baseline with one side of the angle, then find the 20-degree mark on the curved edge. Ensure the center point of the protractor is at the vertex of the angle for an accurate measurement.