Question

how to draw 120 degrees angle with ruler and compass

Answer 1

Follow the following step to construct 120 Degree Angle 

1). Use Ruler and draw a Line segment BC of any convenient length. 
☰Algebra Den

Home >> Angles >> Angle Construction (Compass) >> 120 Degree Angle>>

Construction of 120 Degree Angle with the help of Compass

 

Follow the following step to construct 120 Degree Angle 

1). Use Ruler and draw a Line segment BC of any convenient length.

2). Now use compass and open it to any convenient radius. And with B as center , draw an arc which cuts line segment BC at Q .

3). Again use compass and opened to the same radius (as of step 2). And with Q as center , draw an arc which cuts first arc at R .

4). Again use compass and opened to the same radius (as of step 2). And with R as center , draw another arc which cuts first arc at P .

5). Join BP and extent it to A .

6) Above formed angle ABC = 120 Degree 

Answer 2

Answer:

Follow the following step to construct 120 Degree Angle  

1). Use Ruler and draw a Line segment BC of any convenient length.

2). Now use compass and open it to any convenient radius. And with B as center , draw an arc which cuts line segment BC at Q .

 

3). Again use compass and opened to the same radius (as of step 2). And with Q as center , draw an arc which cuts first arc at R .

 

4). Again use compass and opened to the same radius (as of step 2). And with R as center , draw another arc which cuts first arc at P .  

 

5). Join BP and extent it to A .