Question

A ladder is inclined towards a building. It touches a point at a height of15m on top building. It would rest against the foot of the building. What is the length of the ladder

• A. 20 m
• B. 30 m
• C. 34 m
• D. none

Answer 1

The correct option is D none

Let $AB$ be the building of height $15cm$ and $AC$ be the ladder.

To find the height of ladder information provided in the question is insufficient.

Hence, $\text{D}$ is the correct option.