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Example 4

Find the centroid of the triangular region R bounded by the x-axis, the y-axis, and the line y = 1 - ½x shown in Figure 6.6.11. R is the region under the curve y = 1 - ½x from x = 0 to x = 2. The area of R is

06_applications_of_the_integral-356.gif

The centroid is 06_applications_of_the_integral-357.gif where

06_applications_of_the_integral-358.gif

Thus the centroid is the point (⅔, ⅓).

06_applications_of_the_integral-359.gif

Figure 6.6.11


Last Update: 2006-11-15