Introduction: Construction 90* and 45*

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In this ill show you how to construct an angle 90* and 45*

Step 1: Things You Need

A paper ,scale, pen, compass,pencil

Step 2: Base

Draw a base of any length B and C

Step 3: Arc

With compass on one end (B) Draw an arc of any radius(usually not much big arc)

Step 4: Arcs

With same radius of the previous arc draw another arc { Compass on the first arc end on the base And With same radius} Draw another arc {Compass on the previous arc And with Same radius}

Step 5: Arcs Up Above

With Compass points on the last two arcs Up above Like that bothe the arcs above bisects each other

Step 6: Join

Join the lines to the arcs bisected and there you go 90* JOIN B and A

Step 7: Bisector

To draw am angle bisector from the first arc drawn at B ,draw an arc

And from the line AB cuted by the first arc in the second pic draw an arc which bisects the last one

Step 8: Join

Join B to D and you got an angle bisector or a 45*