Question

A 12-foot ladder is placed 4 feet from the wall. Approximately how far up the wall will the ladder reach?



11
16
8

Answer 1

\( \color{Black}{\Rightarrow 4^2 + ?^2 = 12^2}\)

\( \color{Black}{\Rightarrow ?^2 = 144 - 16}\)

Answer 2

\( \color{Black}{\Rightarrow ? = \sqrt{128} = \dots }\)

Answer 3

11

Answer 4

Yeah