Horizontally 6296

The camera with a viewing angle of 120 ° was placed horizontally on top of the observatory at the height of 30 m. What is the length d of the section at the tower's base that the camera cannot capture?

Correct answer:

d =  17.3205 m

Step-by-step explanation:

h=30 m A=120   B=A/2=120/2=60   tanB=h:d  d=h/tanB=h/tan60° =30/tan60° =30/1.732051=17.321=17.3205 m

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