Find the position of the mass centre of a c

Find the position of the mass centre of a circular sector of radius $R$ and angle at centre $2$

Same as before approach; in this case we have to calculate $x_c$ and $y_c$

$x_C=\frac{{\displaystyle \underset{A}{\overset{\phantom{}}{}}}\text{x}\text{d}\text{A}}{{\displaystyle \underset{A}{\overset{\phantom{}}{}}}dA},y_C=\frac{{\displaystyle \underset{A}{\overset{\phantom{}}{}}}\text{y}\text{d}\text{A}}{{\displaystyle \underset{A}{\overset{\phantom{}}{}}}dA}$