Question

*What is the distance between the lower end of the ladder and the base of the wall if the ladder 17 m high is erected at the top end of the 15 m high wall?*

1️⃣ 7.5 m
2️⃣ 9 m
3️⃣ 8 m
4️⃣ 10.5 m​

Answer 1

Answer:

8 metre

Step-by-step explanation:

this is the answer

Answer 2

Let AC be the ladder, AB be the wall.

Then in △ABC, AC 2 =AB 2 +BC 2

(Pythagoras theorem)

17 2 =15 2 +BC 2 BC 2 =8 2 BC

=8 m

Hence, the foot of the ladder is 8 m from the wall.

Therefore, 3. 8 m