if u want one wid steps . refer to this

We know that,

And,

Mark a point ‘A’ representing 2 on number line. Now, construct AB of unit length perpendicular to OA. Then, taking O as centre and OB as radius, draw

an arc intersecting number line at C.

2.Construction of √(3.5):

1) Draw a right Triangle, in which the two perpendicular sides measure one unit each. The hypotenuse of this triangle measures √2 units. Bisect this into two equal parts, such that each measure (√2)/2 units.

2) Draw another right triangle, in which the two perpendicular sides measure √2 and 1 unit. The hypotenuse of this triangle measure √3 units.

3) Draw another right triangle, in which the two perpendicular sides measure √3 and (√2)/2 units. The hypotenuse of this triangle measures √(3.5) units.

do other parts with the help of these answers