Use a ruler
pad khaoo !!
In conjunction with a straight edge and a protractor.
use trisection method
It is possible to construct a 20 degree angle using only Ruler and Compass. I happened to stumble across a method that is highly accurate. It is posted on my blog. Check the related link
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.
First draw a 90 degree angle .Than draw a 20 degree angle from that 90 degree angle . Than the rest of the angle will be 90-20=70 .Now bisect the 70 degree angle we will get 70/2=35. Now add the rest of the angle means 35+20 =55 GOT 55 DEGREE ANGLE
Well, honey, you start by drawing a straight line with your compass. Then you put the pointy end of the compass on one end of the line and swing that bad boy until it hits the line at the desired angle. Voilà, you've got yourself a 56 degree angle. Keep on slaying those geometry problems, darling.
Well, honey, making an 82-degree angle with a compass is as easy as pie. Just start by drawing a straight line with your ruler. Then place the point of your compass on one end of the line and swing an arc that intersects the line. Finally, use your protractor to measure the angle between the two lines, and voila, you've got yourself an 82-degree angle. Easy peasy lemon squeezy!
To make a 70-degree angle, you can use a protractor. Place the protractor's center point at the angle's vertex, ensuring one side aligns with the baseline of the protractor. Then, find the 70-degree mark on the protractor's curved edge and draw a line from the vertex through this mark. Alternatively, using a compass and straightedge, you can construct a 60-degree angle and then bisect it to create a 30-degree angle, adding them together to achieve a 70-degree angle.
To create an 85-degree angle with a compass, first draw a straight line (the base of the angle). Place the compass point on one end of the line and draw an arc that intersects the line. Without changing the compass width, place the compass point on the point of intersection and draw another arc. Measure 85 degrees using a protractor from the base line to mark the angle, then draw a line from the vertex to this mark to complete the angle.
Draw a point, and a long straight line through it. Put the centre of the compass over the point, with north on the compass (or zero degrees) on the line. Then draw a second line out from the point at 80 degrees on the compass. You'll then have a 80 degree angle between the lines. It's usually a trick that teachers decide to do on their pupils. A compass is what you use to find north and a pair of compasses is used to draw circles.
To construct an angle of 150 degrees using a compass, you would first draw a ray as the initial side of the angle. Then, place the compass on the vertex of the angle and draw an arc that intersects the initial ray at a point. Next, without changing the compass width, place the compass on the intersection point and draw another arc that intersects the previous arc. Finally, draw a ray from the vertex through the point of intersection of the two arcs to create an angle of 150 degrees.