Answer:
use the tangent function to set up an equation:
tan(70°) = h/100
We can then solve for h by multiplying both sides by 100 and taking the tangent of 70 degrees:
h = 100*tan(70°)
Using a calculator, we get:
h ≈ 315.96 feet
the height of the tower is approximately 315.96 feet.
Hope this helps! :)