Question

A 7-foot tall stop sign creates a shadow that is 2 feet long. At the same time, a utility pole creates a shadow that is 11 feet long. How tall, in feet, is the utility pole?what do I do for this problem?

Answer 1

Both shadows are proportional, se we can use a rule of three to find the answer

7 ft tall creates a 2 ft shadow, x tall utility pole creates a 11 ft shadow:

`(7)/(2)=(x)/(11)\Longrightarrow x\text{ = }(7\cdot11)/(2)=(77)/(2)=38.5`

Answer:

38.5 ft