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A person on a ship observed a lighthouse on the cliff, which is 830 metres away from the ship. The angle of elevation of the top of the lighthouse is 12°.
A. How far above sea level is the top of the lighthouse?
B. If the height of the lighthouse is 24m, how high is the cliff?

Respuesta :

Answer:

1660m

Step-by-step explanation:

here, angle of elevation = 12

thus, angle of declination = 90-12=78

sin 78 = 830/height

0.5=830/height

thus, height=1660m

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