CBSE Class 9 Answered
represent 13 square root on the number line
Asked by Rajesh | 17 Sep, 2014, 08:37: PM
Expert Answer
Draw a number line (l) and mark the points O, A, B and C such that OA = AB = BC = 1
Draw CD ⊥ l, such that CD = 1 units.
Join OC
In right ΔOCD,
OD2 = OC2 + CD2
Join OC
In right ΔOCD,
OD2 = OC2 + CD2
OD2 = 9 + 1 = 10
OD = 
Taking O as centre and D as radius, draw an arc which cuts l in F
Now, draw EF ⊥ l, such that EF = 1 units
Join OE'
In right ΔOEF,
OE2 = OF2 + EF2
Taking O as centre and D as radius, draw an arc which cuts l in F
Now, draw EF ⊥ l, such that EF = 1 units
Join OE'
In right ΔOEF,
OE2 = OF2 + EF2
OE = 
Taking O as centre and OE as radius, draw an arc which cuts l in H
Now, draw GH ⊥ l, such that GH = 1 units
Join OG
In right ΔOGH,
Taking O as centre and OE as radius, draw an arc which cuts l in H
Now, draw GH ⊥ l, such that GH = 1 units
Join OG
In right ΔOGH,
OG2 = OH2 + GH2
OG = 
Taking O as centre and OG as radius, draw an arc which cuts l in J.
Now, draw IJ ⊥ l, such that IJ = 1 units
Join OI,
In right ΔOIJ,
OI2 = OJ2 + JI2
OI = 
= OL
= OLTaking O as centre and OI as radius, draw an arc which cuts l in L.
The point L represents
on the number line.
Answered by Dharma Teja | 18 Sep, 2014, 10:34: AM
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