# Inertia for plain shapes

The inertia for the different plain shape-rectangles-isosceles, Triangles, parallelograms, and trapezium.

## 8-Moment of inertia-Iy for right-angle triangle-case-1.

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.

## 7-Moment of inertia for right-angle-Ix-Case-1.

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.

## 6-Solved problems for the estimation of Moment of inertia.

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.

## 5- Easy approach for Product of inertia Ixy for a rectangle.

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.

## 4-Moment of inertia Iy for the rectangular section

How to estimate the Moment of inertia Iy for the rectangular section about axis y? What will be the Iyg value at the Cg?

## 3- Easy introduction to Ix for the rectangular section.

How to estimate the Moment of inertia Ix for the rectangular section using a horizontal strip about axis x? What will be the Ixg value and radii of gyration?

## 2-Parallel axes theorem for Iy, polar moment of inertia.

Introduction to the parallel axes theorem for Iy and polar moment of inertia. and how to get the values of radius of gyrations kx and Ky.

## 1-Introduction to the moment of inertia.

This post includes an introduction to the moment of inertia and what is the difference between the moment of inertia and mass moment of inertia?

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