Q1. For the shaded area shown in figure. Determine:-Co-ordinates of centroid
The removed area is semi-circle and all the given dimensions are in cm. Dimension of rectangle is 12.5*20 cm² and diameter of semi-circle is 7.5 cm.
12.5
7.5
Since figure is symmetric respect to vertical axis:
where Sx is static moments around x axis,
A is area of figure
where Ai are subarea,
yci is centroid coordinate of subarea
for rectangle:
cm2
for semi-circle:
cm2
cm2
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