Question

Find the length of AB

Answer 1

AB is about 53.74 so the answer is (A)

`\sin(c) = (opposite)/(hypotenuse)`

`\sin(61) = (47)/(x)`

`(x)\sin(61) = (47)/(x) (x)`

`(x) \sin(61) = 47`

`((x) \sin(61) )/( \sin(61) ) = (47)/( \sin(61) )`

`x = (47)/( \sin(61) )`

`x = 53.74`