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stich3 [128]
3 years ago
8

Jared is standing on the roof of a 100 meter building doing some surveying. He spots a delivery truck at an angle of depression

of 30 degrees. How far is the truck from the base of the building?
Mathematics
2 answers:
just olya [345]3 years ago
8 0
1st :The angle of depression 30° = the angle of elevation (from the truck to the height of the building.

2nd :
cos 30° = (adjacent side)/(hypotenuse)
cos 30° = x/100, but cos 30°= (√3)/2

(√3)/2 = x/100 and x = (100√3)/2

and x = (50.√3) = 86.60 m

Brums [2.3K]3 years ago
3 0
The truck is 173.20508 meters away because the triangle is a 30 60 90 degree triangle. Therefore you would do. 100(radical)3
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