Question

To determine the height of a pine tree, you measure the shadow cast by the tree and find it to be 20 feet long. Then you measure the shadow cast by a 36-inch tall oak sapling and find it to be
d = 12 inches long. Estimate the height of the pine tree.

Answer 1

if you guys want the picture, this is the picture link:
www.webassign.net/laratrmrp6/2-1-057-alt.gif

Answer 2

since the ratio of height:shadow is the same,
h/20 = 36/12

Answer 3

h/20 = 36/12
h=(36*20)/12
h= 60
is this answer correct

Answer 4

yes. each object is 3 times as tall as its shadow's length.

Answer 5

thanks oobleck