## 14-The Moment of inertia Iy for a triangle.

A full estimate of the moment of inertia Iy for any given triangle? the procedure considered the triangle as composed of two right-angle triangles.

The inertia for the different plain shapes.

A full estimate of the moment of inertia Iy for any given triangle? the procedure considered the triangle as composed of two right-angle triangles.

The post includes the procedure to estimate the moment of inertia Ix -for a triangle and the radius of gyration about x, and then estimate the value Ix at center of gravity cg .

The post includes the product of inertia Ixy for the triangular section case -2. Two alternative methods were used. A full description is introduced.

How to get the moment of inertia for a right-angle triangle -Iy-case-2?The procedure is done by using a vertical strip for integration.

How to get Ix-the moment of inertia for the right-angle triangle-Case-2? by using a horizontal strip, and the other method is to use a vertical strip.

How to estimate the product of inertia Ixy for a right-angle triangle case No.1 at the external axis? step by step illustration by using integration.

How to estimate the moment of inertia-Iy for the right-angle triangle -case-1? This is done by using a vertical strip, Iy at Cg is also estimated.

How to estimate the moment of inertia for right-angle-Ix – case No.1? two methods are used a horizontal strip and a vertical strip.

Two solved problems for practice, the first solved problem is for the inertia of a given rectangular section, it is required to estimate Ix&Iy,kx, and Ky.

The Product of inertia Ixy for a rectangle Two alternative methods to estimate.The first method is by dividing the rectangle into 4 sections of equal area.