A ladder leaning against a wall makes an angle of 45° with the ground. If the ladder is 10√2 m long, how high does it reach on the wall?
Q1. A ladder leaning against a wall makes an angle of 45° with the ground. If the ladder is 10√2 m long, how high does it reach on the wall?
Answer: 10 m
Explanation: The sine of 45° equals the ratio of the height on the wall to the ladder's length. Since sin(45°) = √2/2, the height is 10√2 * √2/2 = 10 m, applying the formula sin(angle) = opposite/hypotenuse.