Question

show how unroot 5 can be represented on the number line

Answer 1

i don't know so please tell me

Answer 2

(OB)2=(OA)2 +(AB) 2
=(2)+(1) 2
=4+1
(OB) 2=5
OB=under root 5
Steps:
1)Draw a number line as 0,1,2,3.
2)Take 2units from 0to2
3)From 2 draw 1 unit upward join OB.
4) Open compass measuring OB. Draw an arc from B. It cuts at a point(between 2and 3)name it D.