Question

A phone company needs to know how tall a cell tower is, so it decides to use a 4 m pole and shadows cast by the sun, as shown in the diagram. Both shadows end at point B. What is the height of the tower?

Answer 1

Well, this is a ratio problem. Since both shadows end at point B, then the towers are proportional. Start with 40:5 and reduce it to 8:1, So for ever 8 meters of the big tower, the little tower increases one. Now since the little tower is 4 meters, the big tower will be 36 meters. Makes sense?

Answer 2

yes thanks

Answer 3

No problem :)