Question

8. The foot of a ladder of length 15 m is kept at a distance of 9 m from a vertical
wall. The ladder reaches a window on the wall. What is the height of the
window from the ground?

Answer 1

Answer:

Step-by-step explanation:

Consider the ladder wall system as a right angled triangle such that length of the ladder be the hypotenuse, length of wall till the ladder be perpendicular and distance between the foot be the base

Thus, H

2

=P

2

+a

2

15

2

=12

2

+a

2

225=144+a

2

a

2

=81

a=9 cm

Thus, distance between the foot of the ladder and the wall is 9 cm.

solution