Question

Aya and Kendra want to estimate the height of a tree. On a sunny day, Aya measures Kendra's shadow as 3 meters long, and Kendra measures the tree's shadow as 15 meters long. Kendra is 1.5 meters tall. How tall is the tree?

Answer 1

Answer:

tree=4.5 meters tall

Step-by-step explanation:

1.5*3=4.5

Answer 2

Answer:

7.5 meters

Step-by-step explanation:

One way to do the problem is to note that there is a dilation (scale) factor of 5 on the shadows, so there must be that factor on the heights too. Another way is to note that the shadows are twice as long as the heights.