HOW TO CONSTRUCT ANGLE 60 AND 30

In any technical drawing or engineering drawing you must first of all make sure your pencils and all your drawing instruments are set

To draw angle 60 this are the steps to follow

•  first of all draw your base line with faint line using your t-square
• pick a point on the line and use it as your reference point say 'A'
• pin you compass at this point and draw a semi circle on the line you have already drawn
• with that same radius(any radius you prefer but it should be the same as that you used in drawing the semi circle stand at a one point of the semi circle and draw an arc to cut the semi- circle
• using the centre of the semi circle and the point where the second arc cut the semi circle draw a line with a ruler passing through this points
• this is the required angle comfirm it using your protractor

figure describing the steps of constructing angle 60 above

To draw angle 30 this are the steps to follow

•  first of all draw your base line with faint line using your t-square
• pick a point on the line and use it as your reference point say 'A'
• pin you compass at this point and draw a semi circle on the line you have already drawn
• with that same radius(any radius you prefer but it should be the same as that you used in drawing the semi circle stand at a one point of the semi circle and draw an arc to cut the semi- circle
• using the centre of the semi circle and the point where the second arc cut the semi circle draw a line with a ruler passing through this points
• bisect the angle you have constructed