A ladder rests against a wall that is perpendicular to the ground. If the bottom of the ladder is 4m away from the bottom of the wall, while the top of the ladder is at a height of 3m. What is the length of the ladder?
সমাধান
সঠিক উত্তর: Option C

মইয়ের দৈর্ঘ্য = √(32 + 42) = 5m