Page 201 - Maths Class 06

Step 3. Without dis turb ing the open ing, place the nee dle of
com pass at point A on line l and draw an arc, which
cuts the line at the point B.
l
A B
Fig. 14.12
Step 4. AB is the re quired line seg ment which is equal to
A B
the length of PQ, i.e. Fig. 14.13
AB = PQ.

Con struc tion : Draw a line seg ment whose length is the sum of the lengths of two line seg ments.
Given : Two line seg ments AB and BC.
A B B C
Construct a line segment, say AC, such that Fig. 14.14
AC = AB + BC.
Step 1. Draw a line l and mark a point A on it.

l
A
Fig. 14.15

Step 2. Take the com passes and mea sure AB.

A B
Fig. 14.16

Step 3. With out dis turb ing the open ing, place its nee dle at
A and draw an arc cut ting line l at B.

l
A B
Fig. 14.17

Step 4. Again ad just the com passes and mea sure the line seg ment BC.

B C
Fig. 14.18
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