Question

how to construct a 180 degree angle

Answer 1

Hey dearie! ☺

The answer!!


It's just so simple to construct 180°.
With scale draw a straight line
And there it becomes 180


But if u wanna do it with compass and scale
•Make 60°
•From 60° make 120°
•Abd from 120° make 180°



hope this helps you!

Answer 2

Normally we use a ruler and a pencil to draw 180°, as any point on a straight line includes 180° between the line segments on either side.
However, with a compass we can draw 180° included in a circular sector (semicircle).
Compass is a geometrical figure constructing tool. It has two legs with one having a clamp for holding a sharp pencil.
  Compass is used to draw circular arcs usually and to measure distances.
 To construct a 180 degrees with just a compass, we draw a straight line AB using a ruler and pencil.  We mark a point O on AB.  Then with O as the center draw an arc with a radius of 2 cm (or any other) from the left side of O to right side of O.
    This arc cuts the straight line AB at C and D.  
The angle ∠COD in the sector ACODB is 180°.

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