spandrel | MATHalino reviewer about spandrel

Problem 708
Compute the area of the spandrel in Fig. P-708 bounded by the x-axis, the line x = b, and the curve y = kxⁿ where n ≥ 0. What is the location of its centroid from the line x = b? Determine also the y coordinate of the centroid.

Centroid and area of spandrel under the curve y = kx^n

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Example 4
Solve the area bounded by the curve y = 4x - x² and the lines x = -2 and y = 4.

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Example 2
Find the area bounded by the curve a² y = x³, the x-axis and the line x = 2a.

Read more about Example 2 | Plane Areas in Rectangular Coordinates
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The moment-area method of finding the deflection of a beam will demand the accurate computation of the area of a moment diagram, as well as the moment of such area about any axis. To pave its way, this section will deal on how to draw moment diagram by parts and to calculate the moment of such diagrams about a specified axis.