Geometry: Difference between revisions
add circumference of a circle |
→Area of a triangle: equilateral triangle |
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== Circumference of a circle == | == Circumference of a circle == | ||
<math> | <math>C = 2 \pi r</math> | ||
== Area of a circle == | == Area of a circle == | ||
<math>A = \pi r^2</math> | <math>A = \pi r^2</math> | ||
== Perimeter of a triangle == | |||
<math>P = a + b + c</math> | |||
[[File:Triangle-math.png|frameless]] | |||
== Area of a triangle == | |||
<math>A = \frac{1}{2} bh</math> | |||
* The area of an equilateral triangle is | |||
<math>A = \frac{1}{4}s^2\sqrt{3}</math> | |||
= Volume and surface area = | = Volume and surface area = | ||
== Volume of a cube == | |||
<math>v(x) = x^3</math> | |||
== Surface area of a sphere == | == Surface area of a sphere == | ||
Latest revision as of 12:54, 24 June 2017
Area and perimeters
Circumference of a circle
Failed to parse (SVG (MathML can be enabled via browser plugin): Invalid response ("Math extension cannot connect to Restbase.") from server "https://api.formulasearchengine.com/v1/":): {\displaystyle C = 2 \pi r}
Area of a circle
Failed to parse (SVG (MathML can be enabled via browser plugin): Invalid response ("Math extension cannot connect to Restbase.") from server "https://api.formulasearchengine.com/v1/":): {\displaystyle A = \pi r^2}
Perimeter of a triangle
Failed to parse (SVG (MathML can be enabled via browser plugin): Invalid response ("Math extension cannot connect to Restbase.") from server "https://api.formulasearchengine.com/v1/":): {\displaystyle P = a + b + c}
Area of a triangle
Failed to parse (SVG (MathML can be enabled via browser plugin): Invalid response ("Math extension cannot connect to Restbase.") from server "https://api.formulasearchengine.com/v1/":): {\displaystyle A = \frac{1}{2} bh}
- The area of an equilateral triangle is
Failed to parse (SVG (MathML can be enabled via browser plugin): Invalid response ("Math extension cannot connect to Restbase.") from server "https://api.formulasearchengine.com/v1/":): {\displaystyle A = \frac{1}{4}s^2\sqrt{3}}
Volume and surface area
Volume of a cube
Failed to parse (SVG (MathML can be enabled via browser plugin): Invalid response ("Math extension cannot connect to Restbase.") from server "https://api.formulasearchengine.com/v1/":): {\displaystyle v(x) = x^3}
Surface area of a sphere
Failed to parse (SVG (MathML can be enabled via browser plugin): Invalid response ("Math extension cannot connect to Restbase.") from server "https://api.formulasearchengine.com/v1/":): {\displaystyle A(r) = 4\pi r^2}
Volume of a sphere
Failed to parse (SVG (MathML can be enabled via browser plugin): Invalid response ("Math extension cannot connect to Restbase.") from server "https://api.formulasearchengine.com/v1/":): {\displaystyle v(r) = \frac{4}{3}\pi r^3}
where r is the radius of a sphere
Volume of a cone
Failed to parse (SVG (MathML can be enabled via browser plugin): Invalid response ("Math extension cannot connect to Restbase.") from server "https://api.formulasearchengine.com/v1/":): {\displaystyle v(r) = \frac{1}{3}\pi r^2 h}
where r is the radius of the base, and h is the height of a cone
Volume of a cylinder
This only applies to a right cylinder.
Failed to parse (SVG (MathML can be enabled via browser plugin): Invalid response ("Math extension cannot connect to Restbase.") from server "https://api.formulasearchengine.com/v1/":): {\displaystyle v(r) = {\pi}r^2h}
where r is the radius of the base, and h is the height of a cylinder