Question

A tree casts a shadow 10 ft long. A boy standing next to the tree casts a shadow 2.5 ft long. The triangle shown for the tree and its shadow is similar to the triangle shown for the boy and his shadow. If the boy is 5 ft tall, how tall is the tree?

Answer 1

i thought maybe 12.5

Answer 2

Proportions.\[{10 \over 2.5} = {x \over 5}\]

Answer 3

So,\[{x \over 5} = 4\]Do you know how to solve this?

Answer 4

honestly not really