A ladder is leaning against a wall. It makes a 60° angle with the wall. If the distance between foot of ladder and wall is 5.5 meters, find the length of the ladder.
| Question | A ladder is leaning against a wall. It makes a 60° angle with the wall. If the distance between foot of ladder and wall is 5.5 meters, find the length of the ladder. | |
| Type | multiple_choice | |
| Option | 9.5m | incorrect |
| Option | 10m | incorrect |
| Option | 10.5m | incorrect |
| Option | 11m | correct |
Let BC be the wall and AC be the ladder.
∠BAC = 60° and AB = 5.5 meter
AC = 2 * AB
= 2 * 5.5 = 11 meters (Option D)