Question
Convert $6$ radian into degree measure.

Answer

We know, degree measure = $\frac { 180 } { \pi }$ $\times$ radian measure
$\therefore$ Required degree measure
$= \frac { 180 } { \frac { 22 } { 7 } } \times 6$ [$\because \pi = \frac { 22 } { 7 }$]
$= \frac { 1080 \times 7 } { 22 }$ degree
$= 343$ $\frac { 7 } { 11 }$degree
$= 343^o +$ $\frac { 7 } { 11 }$ $\times$ $60\ min$ [$\because 1^o = 60']$
$= 343^o + 38 $$\frac { 2 } { 11 }$ min
$= 343^o + 38' +$ $\frac { 2 } { 11 }$ min
$= 343^o +38' +$ $\frac { 2 } { 11 }$ $\times 60"$
$= 343^o + 38' + 10.9"$
$= 343^o 38' 11" ($approx$)$
Hence, $6$ rad $= 343^o 38' 11" ($approx$)$

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