Q5 of 805 Page 14

Given of length 7.3 cm and of length 3.4 cm, construct a line segment such that the length of is equal to the difference between the lengths and . Verify by measurement.

Step 1: Draw line segments of length 7.3cm and 3.4cm using a ruler as a reference.



Step 2: Draw a line PS.With A as the centre, take the length of AB with a compass. With P as the centre, cut an arc.Label it as Y.



Step 3: To cut off 3.4cm, measure CD with the compass. Cut an arc with A as the centre. Label it as X.


Measure BC.



AB-CD = (7.3-3.4)cm = 3.9cm


XY=3.9cm.


More from this chapter

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3

Construct of length 7.8 cm. From this, cut off of length 4.7 cm. Measure .

 4

Given of length 3.9 cm, construct such that the length of is twice that of . Verify by measurement.


 1

Draw any line segment PQ. Without measuring , construct a copy of .

 2

Given some line segment AB, whose length you do not know, construct such that the length of is twice that of .