Calculation of areas and volumes of basic geometric shapes, Online

Practical application of mathematical formulas, where the change of each value directly changes the others.

Cycle

Cycle, colored design
= π*
2
= 2*π*

Rectangle

Rectangle, colored design Rectangle, colored design
=
*
= 2*
(
+
)

Trapezoid

Trapezoid, colored design Trapezoid, colored design
= ((
*
)
*
)
/2
=
+
+
+

Triangle

Triangle, colored design Triangle, colored design
=
(
*
)
/2
=
+
+

Rectangular parallelepiped

Rectangular parallelepiped, colored design Rectangular parallelepiped, colored design
=
*
*
= 2*
((
*
)
+
(
*
)
+
(
*
))

Sphere

= 4/3*π*
3
= 4*π*
2

Cylinder

Cylinder, colored design Cylinder, colored design
= π*
2 *
= 2*π*
*
(
+
)

Info

I chose the mathematical formulas that have a practical application so that in addition to educational purpose, they could also be practical tools for carpenters-craftsmen-engineers.

The above application is written in JavaScript programming language and designed to be easy to use.

It belongs to the application family Simple & Nice Apps, snapps, with the following facebook page.