Question

A 3 foot pole casts a 6 foot shadow. A 4 foot pole casts an 8 foot shadow.

Use a linear equation to predict the length of a shadow cast by a 6 foot pole.

Answer 1

Since this is linear the rate is constant, and by similar triangles we can say

s/h=s/h

s/6=6/3

s/6=2

s=12 ft