A 60 degree angle
A 30 degree angle is an acute angle because it is greater than 0 but less than 90 degrees.
Use and rearrange the sine ratio: 30*sin(45) = 21.21320344 units
90 degrees
a 30-degree angle .
30 degree's and 30 degrees
always 30 degrees
That's what an isometric drawing is: the third dimension is shown at a 30 degree angle to the horizontal. The number 30 isn't magic - any other number in that 'ballpark' would work - but it's an easy number ( a third of a right angle, and it's clearly different from 60 degrees, which is why 45 degrees wouldn't be great), and the resulting drawing makes the 3-D object easy to visualize.
30 degree angle
Yes.
a 60 degree angle is twice the size of a 30 degree angle.
The takeoff for a 30 degree angle will depend with the offset angle.
Yes and they are both acute angles
a 60-degree angle
staircase is made in an angle of 20 to 30 degree and it shouldn't be more then 30 degree.
If you bisect a 30 degree angle, you end up with two 15 degree angles.
An isometric view necessarily should have two side views and either top or bottom view incorporated to be drawn in a single drawing. In order to represent top 0r bottom view a 30 degree angle from horizontal will be established as an inclined plane. Hence where the circle has to appear is important. Any how in order to get a circle in an isometric view an oval or elliptical form should be present in any one of the first angle or third angle views.