cmarquez0601
cmarquez0601 cmarquez0601
  • 01-05-2020
  • Mathematics
contestada

A boy 1.5 m tall can just see the sun over a wall 71.5 m high which is
40.41 m away from him. Find the angle of elevation of the sun.​

A boy 15 m tall can just see the sun over a wall 715 m high which is4041 m away from him Find the angle of elevation of the sun class=

Respuesta :

makaylamadisonrobins
makaylamadisonrobins makaylamadisonrobins
  • 01-05-2020

Answer:

C. 45 degree angle

Step-by-step explanation:

let AB be the height of the wall and CD be the height of boy

with BC as distance between them.

we have AE = AB-BE = 3.64-1.54 = 2.1m

and ED = BC = 2.1m

in triangle AED, we have

tanФ = P/B = 2.1/2.1

tanФ = 1

∴ Ф = 45°

Hence the sun is elevated at an angle of 45 °.

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