Respuesta:
64.2728 cm
Explicación paso a paso:
Usamos el teorema de Pitágoras:
[tex]c ^{2} = a^{2} + b^{2} [/tex]
Entonces, sustituimos:
c = 66
a = 15
b = ?
[tex]{66}^{2} = {15}^{2} + {b}^{2} [/tex]
[tex] {b}^{2} = {66}^{2} - {15}^{2} [/tex]
[tex] {b}^{2} = 4356 - 225[/tex]
[tex] {b}^{2} = 4131[/tex]
[tex]b = \sqrt{4131} [/tex]
[tex]b = 64.27285586...[/tex]