HOW TO MAKE 40 DEGREE ANGLE USING RULER AND COMPASS
Step 1:-Draw a line segment BC of any measurement.
Step 2:-Now, B as center and any radius draw an arc give it as arc (RS).
Step 3:-Where the arc rs cut the line segment BC give that point as P.Now, with P as center and same radius cut another arc which intersect the arc RS at point X.
Step 4:-With X as center and same radius cut another arc which intersect the arc RS at point Y.
Step 5:-with X as center and any radius cut an arc and now,Y as center and same radius cut another arc which intersect the first arc.
Step 6:-Now taking Z as center and radius ZP cut another arc.Now taking P as center and same radius cut another arc which intersect the first arc at point Q.
Step 7:-Join BQ.
At last we get angle QBC=40 degree.
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by using a ruler and a compass
first draw a ray .
with compass.........at 90+60degree angle,,,,,,,,, * * * * * and 90 + 60 = 105??? You need to draw a 90 degree ange and bisect it to give a 45 deg angle. Then add a 60 degree angle. 45 + 60 = 105.
In conjunction with a straight edge and a protractor
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.
by using a ruler and a compass
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
first draw a ray .
Construct 2 perpendicular lines which will meet at 90 degrees then by bisecting this angle wll give a 45 degree angle
An angle of 65° can not be trisected using a compass and straight edge.
A 10 degree angle cannot be constructed using only a compass and straight edge.
by 60 degree and 90 degree
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
You cannot, you must use a protractor.
With a straight edge and a protractor
with compass.........at 90+60degree angle,,,,,,,,, * * * * * and 90 + 60 = 105??? You need to draw a 90 degree ange and bisect it to give a 45 deg angle. Then add a 60 degree angle. 45 + 60 = 105.