- Resources, Tools and Basic Information for Engineering and Design of Technical Applications!
The controid of square, rectangle, circle, semi-circle and right-angled triangle.
The centroid of an area is the point where the whole area is considered to be concentrated.
x = a / 2 (1a)
y = a / 2 (1b)
A = a2 (1c)
x = a / 2 (2a)
y = b / 2 (2b)
A = a b (2c)
x = r (3a)
y = r (3b)
A = π r2 (3c)
x = 4 r / (3 π) (4a)
y = r (4b)
A = π r2/ 2 (4c)
x = b / 3 (5a)
y = h / 3 (5b)
A = b h / 2 (5c)
Mathematical rules and laws - numbers, areas, volumes, exponents, trigonometric functions and more.
Convert between units of area.
The equation for a circle
Circumferences and areas of circles with diameters in inches.
Calculate the numbers of circles on the outside of an inner circle - like the geometry of rollers on a shaft.
Ellipse, circle, hyperbola, parabola, parallel, intersecting and coincident lines.
Radius and side lengths of equal areas, circles and squares.
Areas, diagonals and more - of geometric figures like rectangles, triangles, trapezoids ..
Distances between corners for hexagons and squares.
Verifying square corners.
Right angled triangle equations.
The maximum number of smaller rectangles - or squares - within a larger rectangle (or square).
The volume and surface of solids like rectangular prism, cylinders, pyramids, cones and spheres - online calculator.
Sine, cosine and tangent - the natural trigonometric functions.
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