A ladder is placed against a wall at a distance of 10 m. It is inclined at an angle of 60° to the ground. The length of the ladder is?
Answer & explanation
Correct answer: option 2
length of the ladder = x m
cos 60° = \(\frac{BC}{AC}\)
⇒ \(\frac{1}{2}\) = \(\frac{10}{AC}\)
⇒ AC = 20 m