11)

A ladder is resting against a wall, The angle between the foot of the ladder and the wall is 45° and the foot of the ladder is 6.6 m away from the wall. The length of the ladder (in m) is:

SSC CPO 2020

A)

6.6 X √2

B)

3.3 X √2

C)

2.2 X √2

D)

3.6 X √2

12)

Let A and B be two towers with the same base. From the mid point of the line joining their feet, the angles of elevation of the tops of A and B are 30° and 45°, respectively. The ration of the heights of A and B is:

SSC CPO 2020

A)

√3 : 1

B)

1 : 3

C)

1 : √3

D)

3 : 1