A tree 30 feet tall casts a shadow 7 feet at the same time that a flagpole casts a shadow 5 feet .Find the height of the flagpole .

Answer 1

since the ratio of height:shadow is the same for both,

30/7 = h/5

Answer 2

The sun's rays cast a shadow as shown in the diagram below. Find the height of the flagpole if

d = 8.
Write the answer in terms of feet.