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?

Question

anonymous · Answer

20 feet, I think?

rob1525 · Answer

Okay so if the triangles are similar then both have the same angles but different length sides, right. find the angles of the smaller triangle then use the law of sins to find the height of the tree. I got 8.94.