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:

3. 8m

A² +B² =C²

A² + 15² = 17²

A² = 289 - 225

A² = 64

A = 8