Question

Show the number √7 on the number line​

Answer 1

Answer:

1) Let A be on the line such that Oa = 1.

2) draw AB perpendicular to Oa at A such that CD = 1 then OB2=Oa2+AB2 =12+12 =2 thus, OB=2. Again draw CD perpendicular to I such that CD=1 then OD2 = OC2+CD2= 2+1= 1

hence OF=7