6.Two ships are sailing in the sea on the two sides of a lighthouse. The angles of elevation of the top of the lighthouse as observed from the two ships are 30° and 45° respectively. If the lighthouse is 100 m high, the distance between the two ships is : A) 173m B) 200m C) 273m D) 300m View Answer Report DiscussAnswer: Option CExplanation:
7.An observer 1.6 m tall is 20 root of 3 m away from a tower. The angle of elevation from his eye to the top of the tower is 30°. The height of the tower is : A) 21.6 m B) 23.2 m C) 24.72 m D) None of these View Answer Report DiscussAnswer: Option AExplanation:
8.The angle of elevation of a ladder leaning against a wall is 60° and the foot of the ladder is 4.6 m away from the wall. The length of the ladder is : A) 2.3m B) 4.6m C) 7.8m D) 9.2m View Answer Report DiscussAnswer: Option DExplanation:
9.From a point P on a level ground, the angle of elevation of the top of a tower is 30°. If the tower is 100 m high, the distance of point P from the foot of the tower is : A) 149 m B) 156 m C) 173 m D) 200m View Answer Report DiscussAnswer: Option CExplanation:
10.The angle of elevation of the sun, when the length of the shadow of a tree is root of 3 times the height of the tree, is : A) 30 degree B) 45 degree C) 60 degree D) 90 degree View Answer Report DiscussAnswer: Option AExplanation:
