Question

The bottom of a ladder must be placed 2 1/2 feet from the wall. The ladder is 9 feet long How far above ground is the ladder touch the wall?

Answer 1

Answer:

Step-by-step explanation:

$h=\sqrt{9^2-(\frac{5}{2} )^2}\\=\sqrt{81-\frac{25}{4} } \\=\sqrt{\frac{299}{4} } \\=\frac{\sqrt{299} }{2} \\\approx 8.6458\\\approx 8.65 ~ft$

Answer 2

Answer:

24

Step-by-step explanation:

Use the Pythagorean Theorem