Question

Not sure how to solve.

Julia uses the shadow of a flagpole to estimate its height. She stands so that the tip of her shadow coincides with the tip of the flagpole’s shadow, as shown. Julia is 5 feet tall. The distance from the flagpole to Julia is 28 feet, and the distance from the tip of the shadows to Julia is 7 feet. Calculate the height of the flagpole.


a. 13 feet
b. 980 feet
c. 39 feet
d. 25 feet

Answer 1

since the triangles are similar, we can set up this proportion

\[\Large \frac{x}{28+7} = \frac{5}{7}\]

solve for x to get your answer

Answer 2

25?

Answer 3

correct