Hence, AB is the requiredine segmenci longthumconstructa line segment

1.	Hence, AB is the requiredine segmenci longthumconstructa line segment of length 5 bomusing ruler and compassStops of construction: 4*() Draw a line 1. Marka point Aon this lins,Place the compass pointer on zero mark the nuter. Open todasthe pencil point upto 56 cm mark,0 Without changing the opening of the compass, Place the winter on Aand cut an arcateAB is the required line segmento length 56cm,Construct AB of length 78 cm. From this out of AC of length 47 cm.Measure BC.- 7 enSteps of construction:A 21cm 31cm @0. Place the zero mark of the ruler ata,(1) Marka point Bat a distance 78cm from A() Again, Mark a pointCatadistance 47 from A.Hence, by measuring BC, we find that BC=3.1 cmGiven AB of length 3.9 cm, construct PO such that the length of POis twice that of AB.Verify by measurement.0.4.(Hint: Construct PX such that length of PX = length of AB ; then cutyon has the length of AB.)
Answer» Step-by-step explanation: Construction of Line Segment Construction of line segment is a drawing using ruler and COMPASS. These are geometrical tools. In construction of line segment, the result is being verified using scale.It is used in building plan,roads etc. Draw a line segment of length 3.9 cm using a ruler. Solution : Step 1: Draw a line l. Mark a point on the line l. Step 2: Place the compasses pointer on the zero mark of the ruler. OPEN it to place the pencil point upto 3.9 cm. Step 3: Taking caution that the opening of the compasses has not changed, place the pointer on A and swing an arc to cut l at B. Step 4: segment AB is a line segment of required length. _________________________________________________________________ CONSTRUCT a COPY of a given segment. Step 1: Draw line segment CD of any length. Step 2: Fix the compasses pointer on C and the pencil end on D. Now this opening of the compasses gives the length of segment CD. Step 3 : Draw a line l. Mark a point A on the line l. Without changing the compasses setting, place the pointer on A. Step 4 : Cut an arc that cuts l at a point B. Now, AB is a copy of CD.

Hence, AB is the requiredine segmenci longthumconstructa line segment of length 5 bomusing ruler and compassStops of construction: 4*() Draw a line 1. Marka point Aon this lins,Place the compass pointer on zero mark the nuter. Open todasthe pencil point upto 56 cm mark,0 Without changing the opening of the compass, Place the winter on Aand cut an arcateAB is the required line segmento length 56cm,Construct AB of length 78 cm. From this out of AC of length 47 cm.Measure BC.- 7 enSteps of construction:A 21cm 31cm @0. Place the zero mark of the ruler ata,(1) Marka point Bat a distance 78cm from A() Again, Mark a pointCatadistance 47 from A.Hence, by measuring BC, we find that BC=3.1 cmGiven AB of length 3.9 cm, construct PO such that the length of POis twice that of AB.Verify by measurement.0.4.(Hint: Construct PX such that length of PX = length of AB ; then cutyon has the length of AB.)

Answer»

Step-by-step explanation:

Construction of Line Segment

Construction of line segment is a drawing using ruler and COMPASS. These are geometrical tools.

In construction of line segment, the result is being verified using scale.It is used in building plan,roads etc.

Draw a line segment of length 3.9 cm using a ruler.

Solution :

Step 1: Draw a line l. Mark a point on the line l.

Step 2: Place the compasses pointer on the zero mark of the ruler. OPEN it to place the pencil point upto 3.9 cm.

Step 3: Taking caution that the opening of the compasses has not changed, place the pointer on A and swing an arc to cut l at B.

Step 4: segment AB is a line segment of required length.

_________________________________________________________________

CONSTRUCT a COPY of a given segment.

Step 1: Draw line segment CD of any length.

Step 2: Fix the compasses pointer on C and the pencil end on D. Now this opening of the compasses gives the length of segment CD.

Step 3 : Draw a line l. Mark a point A on the line l. Without changing the compasses setting, place the pointer on A.

Step 4 : Cut an arc that cuts l at a point B. Now, AB is a copy of CD.

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