Question

• A ladder 10 m long reaches a window 8 m above the ground. Find the distance of the foot of the ladder from base of the wall.​

Answer 1

Answer:

6 metres

Step-by-step explanation:

In ⊥ΔACB, ∠C=90°

Given: AC = 8m, AB = 10 m

To find: BC

Using pythagoras theorem,

(AB)² = (AC)² + (BC)²

(10)² = (8)² + (BC)²

100 = 64 + (BC)²

(BC)² = 100 -64

(BC)² = 36

BC = √36

BC = 6

∴ Ladder is at a distance of 6m from the base of the wall.