Question

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Answer 1

Answer:

a is 9m

Step-by-step explanation:

H² = P² + B²

(15)² = (12)² + a²

225 = 144 + a²

a² = 225 - 144

a² = 81

a = √81

a = 9

Answer 2

Answer: The distance of the ladder from the wall would be 29.53 foot or 9 meter.

Step-by-step explanation: To Find :

The distance between the ladder and wall on the ground.

Solution :

Let AB be the ladder and BC be the wall.

B is the position of the wall.

∵ the length of AB = 15 meter

and the length of BC = 12 meter

By Pythagoras Theorem :

In ΔABC, ∠C = 90°

(AB)² = (BC)² + (AC)²

(15)² = (12)² + (AC)²

AC² = 15² - 12²

AC² = 225 - 144

AC² = 81

AC = √81

AC = 9 meter

1 meter = 3.2808 foot

9 meter = 29.527 ≈ 29.53 foot

The distance of the ladder from the wall would be 29.53 foot or 9 meter.

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