Question

14. A ladder 10m long rests against a vertical wall. If the foot of the ladder is 6m away from the wall and
the ladder just reaches the top of the wall, how high is the wall?

Answer 1

Step-by-step explanation:

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Answer 2

Answer:

The height of the wall = 8 m

Step-by-step explanation:

Solution:

Tip:

Pythagoras theorem : In a right-angled triangle, the square of the hypotenuse side is equal to the sum of squares of the other two sides

If Perpendicular side = a , base = b and hypotenuse = c then

Write down the distance between wall and ladder

Here the foot of the ladder is 6m away from the wall and the ladder just reaches the top of the wall

AC = 6 m

Apply Pythagoras theorem to find the height of the wall

The height of the wall = AB = ?

Pythagoras theorem gives