Answers

2016-03-15T21:57:21+05:30
 for √10, mark a point A on the number line such that OA = 3 and draw a line AB perpendicular to the number line such that AB = 1 
OB2= OA2+AB2
= OB2= (3)^2 + (1)^2
=> OB = √10 (by pythagorus theorem) 
With center at O and radius = OB = √10, cut an arc at C on the number line 
=> OC = √10.

0
root 10=square of 3 and square of 1
HOPE IT HELPED :)