Question

If you place a 39-foot ladder against the top of a building and the bottom of the ladder is 33 feet from the building how tall is the building?

Answer 1

Answer:

20.78 feet

Step-by-step explanation:

$39^{2} =h^{2} +33^{2} \\1521= h^{2} +1089\\h^{2}= 1521-1089\\h^{2} =432h= 20.78$

Answer 2

Answer:

Formulate

Based on the given conditions, formulate:

$\sqrt{3 {9}^{2} } - 3 {3}^{2}$

Evaluate

Evaluate the equation/expression:

20.78461

SO THE ANSWER IS 20.78461