Height and Distance Questions Practice Question and Answer
8 Q: The height of a light house is 20 meters above sea level. The angle of depression (from the top of the lighthouse) of a ship in the sea is 30°. What is the distance of the ship from the foot of the light house?
1373 0606d78f36a85553684e1c486
606d78f36a85553684e1c486- 116 mfalse
- 220√ 3 mtrue
- 320 mfalse
- 430 mfalse
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Answer : 2. "20√ 3 m"
Q: A straight tree breaks due to storm and the broken part bends so that the top of the tree touches the ground making an angle of 30 ° with the ground. The distance from the foot of the tree to the point, where the top touches the ground is 10m. Find the total height of the tree
1372 05f0c107b6d4355600942c91c
5f0c107b6d4355600942c91c- 110(√3+1) mfalse
- 210(√3-1) mfalse
- 310 √3 mtrue
- 4false
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Answer : 3. "10 √3 m "
Q: The angles of elevation of the top of a temple, from the foot and the top of a building 48 m high, are 60o and 30o respectively. The height of the temple is more than the building. The height of the temple is-
1369 05e4cca1f701cfd31ff61c1b9
5e4cca1f701cfd31ff61c1b9- 172 mtrue
- 275 mfalse
- 360 mfalse
- 465 mfalse
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Answer : 1. "72 m"
Q: From the top of an upright pole 17.75 m high, the angle of elevation of the top of an upright tower was 60⁰. If the tower was 57.75 m tall, how far away (in m) from the foot of the pole was the foot of the tower?
1343 064ad3a308c254a4ceae7a678
64ad3a308c254a4ceae7a678- 1false
- 2
- 3false
- 4true
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Answer : 4. " "
Q: The length of the shadow of a vertical tower on level ground increases by 10 meters when the altitude of the sun changes from 45° to 30°. Then the height of the tower is
1334 05dcbd961e9d33d6509beda5f
5dcbd961e9d33d6509beda5f- 15 ( √3 + 1 ) meterstrue
- 25 ( √3 - 1 ) metersfalse
- 35√3 metersfalse
- 4false
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Answer : 1. "5 ( √3 + 1 ) meters "
Q: A man standing on the bank of river observes that the angle subtended by a tree on the opposite bank is 60°. When he retrieves 36 m from the bank, he find that the angle is 30°. The breadth of the river is
1331 05d70e681d8eebc768d1176e9
5d70e681d8eebc768d1176e9- 115 mfalse
- 218 mtrue
- 316 mfalse
- 411 mfalse
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Answer : 2. "18 m"
Q: From an observation tower ‘h’ meter above the level of river, the angle of depression of a point on the near shore is A° and that of a point directly on the far shore is B°. Find the width of the river.
1310 0600e93b77fb81d03bf731436
600e93b77fb81d03bf731436- 1h (Cot B +Cot A)true
- 2h (tanB +tanA)false
- 3h (tanA - tan B)false
- 4h(cot B-cotA)false
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Answer : 1. "h (Cot B +Cot A)"
Q: The angle of elevation of sun changes form 30°to 45°, the length of the shadow of a pole decreases by 4 meters, the height of the pole is (Assume √3 = 1.732)
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5dcbd87745ad6b59c82e6940- 11.464 mfalse
- 29.464 mfalse
- 33.648 cmfalse
- 45.464 mtrue
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