Answer:
Step-by-step explanation:
according to the question
[tex] \sin( {71}^{o} ) = \frac{x}{5} [/tex]
[tex]x =5 \sin( {71}^{o} ) [/tex]
[tex]x = 4.72[/tex]
[tex] \huge x = 4.7[/tex]
[tex]pythagoras \: theorm : \\ {a}^{2} + b ^{2} = {c}^{2} [/tex]
[tex]b = \sqrt{c ^{2} - {a}^{2} } [/tex]
[tex]b = \sqrt{ {5}^{2} - {4.7}^{2} } [/tex]
[tex] \huge b = 1.7[/tex]