How to construct 90degree angle?? and also 105 degree anglee using a compass??
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Follow the following step to construct 90 Degree Angle
1). Use ruler and draw a Line segment OB of any convenient length. (as shown below)
2). Now use compass and open it to any convenient radius. And with O as center , draw an arc which cuts line segment OB at X. (as shown below)
3). Again use compass and opened to the same radius (as of step 2). And with X as center , draw an arc which cuts first arc at D . (as shown below)
4). Again use compass and opened to the same radius (as of step 2). And with D as center , draw another arc which cuts first arc at C . (as shown below)
5). Again use compass and opened to the same radius (as of step 2). And With C & D as center , draw two arc which cuts each other at E . (as shown below)
6). Join OE and extent it to A . (as shown below)
7). Above formed angle AOB = 90 Degree.
1). Use ruler and draw a Line segment OB of any convenient length. (as shown below)
2). Now use compass and open it to any convenient radius. And with O as center , draw an arc which cuts line segment OB at X. (as shown below)
3). Again use compass and opened to the same radius (as of step 2). And with X as center , draw an arc which cuts first arc at D . (as shown below)
4). Again use compass and opened to the same radius (as of step 2). And with D as center , draw another arc which cuts first arc at C . (as shown below)
5). Again use compass and opened to the same radius (as of step 2). And With C & D as center , draw two arc which cuts each other at E . (as shown below)
6). Join OE and extent it to A . (as shown below)
7). Above formed angle AOB = 90 Degree.
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