The answer depends on the angle of the sun. That will depend on the time of day, latitude and the season.
17.45 feet.
It works out as 30 feet in height
To find the shadow of a w-foot tree, you can use the ratio of the person's height to their shadow. If a 5-foot person has an 8-foot shadow, the ratio is 5/8. Therefore, the shadow of a w-foot tree can be calculated using the formula: Shadow of tree = (w/5) * 8.
To determine the height of the tree based on the shadow length, we can use the concept of similar triangles. If the tree casts a shadow of 1 foot while a 1-foot pole also casts a shadow of 1 foot, then the height of the tree is the same as the height of the pole. Thus, the tree is also 1 foot tall.
10.'384615' (recurring decimals) feet
17.45 feet.
60
To cast a 19 foot shadow the building would have to be 26.91 feet tall. Each foot of building/tree casts 8.47 inches of shadow.
It works out as 30 feet in height
27.3 feet
The man is twice as high as his shadow. Therefore, the tree must also be twice as high as its shadow, which would make the tree 40 feet tall.
39
10.'384615' (recurring decimals) feet
The tree was 20 feet tall.
25 ft
A 1 foot shadow I think.
The tree is 25 feet tall. A 5 foot pole cast a 2 foot shadow. This means that the sun angle causes the shadow to be 2/5 the length of the object casting it. The tree's shadow is 10 feet tall. Multiply 10 feet by 5/2 (inverting the fraction because we're going the other way) and we get 25 feet.