How high is a tree that casts a 35 -ft shadow at the same time a 9 -ft post
casts a shadow which is 7 -ft
long?
The tree's height is ___ ft.
I have 57.5 is it came out wrong what should I calculate to get the right answer?
Let H be the tree height....so we have
H / 35 = 9 / 7 multiply both sides by 35
H = (35 * 9) / 7 = (35/7) * 9 = 5 * 9 = 45 ft
7/ 9 x 35 =27 2/9 Ft - the height of the tree.
sorry, got it backwards !!
A 9 ft post casts a 7 ft shadow.
A 45 ft tree casts a 35 ft shadow.