Question

a ladder of length 13 m rests against a wall . if it reaches 12 m up the wall how far from the wall is foot of the ladder​

Answer 1

Answer:

5m

Step-by-step explanation:

Wall and floor will make right angle

Here we will apply Pythagoras Theorem

Length of ladder=AC

Distance of Wall from Ladder's Foot=BC

Height of Wall=AB

AC²=AB²+BC²

BC²=AC²-AB²

⇒BC²=13²-12² ⇒ 169-144 ⇒ 25

⇒BC=5

Answer 2

Answer:

The distance is 5 m

Step-by-step explanation:

Using Pythagoras Theorem:

x = √{13^2 - 12^2)

x = √25

x = 5 m