Question

4A 13 m long ladder reached a ventilator 12m high from the ground on placing it against a wall at a distance. Find the distance ofthe foot of the ladder from the wall.

Answer 1

Answer:

5m = base, the distance of the foot of the ladder from the wall.

Step-by-step explanation:

GIVEN. :-

HYPOTENUSE , LENGTH OF LADDER = 13m

PERPENDICULAR, HEIGHT OF WALL= 12m

BASE = ?

TO FIND :-

the distance of the foot of the ladder from the wall.

Solution :-

1) the ladder, wall and distance btw their foots make a right angled triangle, so applying Pythagoras theorm....

hypotenuse ^ 2 = perpendicular ^2 + base^2

13^2 = 12^2+ base ^ 2

√169-144 = base

√25 =base

5m = base, the distance of the foot of the ladder from the wall.