$(a)$ Use the rectangles $in$ each graph $to$ approximate the area $of$ the region bounded $byy=sin(x),y=0,x=0,$ and $x=.(Round$ your answer $to$ three decimal places.$)$ Figure A Figure $B(b)$ Describe how you could continue this process $to$ obtain a more accurate approximation $of$ the area. Continually increase the number $of$ rectangles. Continually decrease the height $of$ all rectangles. Continually decrease the number $of$ rectangles. Continually increase the height $of$ all rectangles.

Consider the figures below.

$(a)$ Use the rectangles $in$ each graph $to$ approximate the area $of$ the region bounded $byy=sin(x),y=0,x=0,$ and $x=.(Round$ your answer $to$ three decimal places.$)$

Figure $A$

Figure $B$