A15 ft pole is leaning against a tree. the bottom of the pole is 9 feet away from the bottom of the tree , approximately how high up the tree does the top of the pole reach?

12ft

Step-by-step explanation:

you do 15squared×9squared to get 144 then you square root it to make 12

b

step-by-step explanation:

option a is correct.

step-by-step explanation:

scale factor: it is used to find proportional measurements.

proportions means having the same ratio.

scale factor is the ratio of the model measurement to the actual measurement in a simplest form.

or we can say that the ratio of any two corresponding lengths in two similar geometric figures

if the scale factor is more than 1, then it is an enlargement,

if the scale factor less than 1, then it is a reduction.

given the two geometric figure:

by definition of proportions, we have