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Bisecting AnglesCovid19 has led the world to go through a phenomenal transition . Elearning is the future today. Stay Home , Stay Safe and keep learning!!! Construction of Bisecting AnglesUsing a protractor draw are angle of measure 80 ^{0} .Bisect the given angle. Step 1: Draw a ray OA. Step 2:With the help of protractor draw an angle AOB of measure 80 ^{0} Step 3: With center O and a convenient radius draw an arc cutting arms OA and OB at P and Q respectively. Step 4: With center P and radius more than halflength of PQ, draw an arc. Step 5: With center Q and same radius as in the step 4, draw another arc intersecting the arc drawn in the step 4 at R. Step 6: Join OR and Produce it to form a ray OX the angle AOX is the angle of measure 40 ^{0} ( one half of 80 ^{0} ) Construction of Angles 60^{0},120^{0}and 180^{0} Step 1 : Draw a line segment AB of any length. Step 2 : Draw an arc of any radius with center A, which cuts AB at P. Step 3 : With same radius and center at P draw another arc, which cuts earlier arc at Q. Step 4 : Join AQ. Step 5 : ∠BAD = 60 ^{0} Step 4 : With same radius and centre at Q draw another arc which cut the first arc at R. Step 5 : Join A and R by drawing AC. Step 6 : ∠CAB is the required 120° angle.
Geometrical Constructions • Basic Geometric Constructions • Construction of Line Segment • Bisecting a Line Segment • Constructing Angles • Bisecting Angles • Constructing Parallel Lines • Construction of Triangle (SSS) • SAS Triangle Construction • ASA Triangle Construction • HL Triangle Construction (Rhs construction) • Constructing Quadrilaterals • Constructing Triangles(when sum of sides or perimeter is given) Covid19 has affected physical interactions between people. Don't let it affect your learning.
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