A ladder 5m long leans against a wall, making an angle of 60° with the ground. How far is the foot of the ladder from the wall?
Q1. A ladder 5m long leans against a wall, making an angle of 60° with the ground. How far is the foot of the ladder from the wall?
Answer: 2.5 m
Explanation: Using cos(60°) = adjacent side / hypotenuse, we get cos(60°) = distance / 5. So, distance = 5 * 0.5 = 2.5 m.