# 机机对机机小视频教程

MOMENT OF INERTIA, CENTROID AND AREA OF ISOSCELES TRIANGLE

Area, moment of inertia and centroid of isosceles triangle. Unit System (Quick selection)
 Metric Inch
INPUT PARAMETERS
Parameter Value
Equal sides length [a]
Remaining side [b]

 RESULTS Parameter Value Cross section area [A] --- mm^2 cm^2 inch^2 ft^2 Second moment of area about x axis [Ix] --- mm^4 cm^4 inch^4 ft^4 Second moment of area about y axis [Iy] --- Radius of gyration [rx] --- mm cm机机对机机小视频教程 m inch ft Radius of gyration [ry] --- Altitude [h] --- mm cm m inch ft Distance from the centroid to the vertice [xc] --- Distance from the centroid to the vertice [yc] ---

Note: Use dot "." as decimal separator.

### Definitions:

Equilateral Triangle: A triangle with all three sides of equal length.

Second Moment of Area: The capacity of a cross-section to resist bending.

Radius of Gyration (Area): The distance from an axis at which the area of a body may be assumed to be concentrated and the second moment area of this configuration equal to the second moment area of the actual body about the same axis.

### Isosceles Triangle Formula:

 Isosceles Triangle Parameter Symbol Equation Cross section area A A = b*h/2 Altitude h h=(a2-(b2*1/4))0.5 Area moment of inertia Ix Ix = (b*h3)*1/36 Area moment of inertia Iy Iy = (h*b3)*1/48 Distance from the centroid to the back of the long leg xc xc=b/2 Distance from the centroid to the back of the short leg yc yc=h*2/3 Radius of gyration rx rx = 0.2357*h Radius of gyration ry ry机机对机机小视频教程 = 0.2041*b