A ladder rests against a wall that is perpendicular to the ground. If the bottom of the ladder is 4 meter away from the bottom of the wall, while the top of the ladder is at a height of 3 meter. What is the length of the ladder?

• ক 5 m ✅ সঠিক উত্তর
• খ 12 m
• গ 6 m
• ঘ 9 m