A skyscraper casts a shadow 200 feet long. If the angle of elevation of the sun is 45o , then the height of the skyscraper is ____
170 feet

324 feet
200 feet
not enough information

Question

A skyscraper casts a shadow 200 feet long. If the angle of elevation of the sun is 45o , then the height of the skyscraper is ____
 170 feet

324 feet
200 feet
not enough information

anonymous · Answer

Draw a triangle and use trignometry.

goformit100 · Answer

not enough information

jim_thompson5910 · Answer

|dw:1400194995695:dw|

anonymous · Answer

yeah here cos45 = hyp/200
so x here is 100(sqrt(2))

So the answer is A. 170 feet.

Hope this helped.

anonymous · Answer

ty

jim_thompson5910 · Answer

Boblovesmath, right idea, but wrong answer

jim_thompson5910 · Answer

use tangent instead

jim_thompson5910 · Answer

oh and it should be cos = adj/hyp

anonymous · Answer

oh yeah sorry, I found the hypotenuse, but I think the answer will be 170 feet as well.

anonymous · Answer

I am sorry the answer would be 324 feet, because hypotenuse always has the greatest magnitude in a triangle.

jim_thompson5910 · Answer

tan = opp/adj

tan(45) = x/200

solve for x