a = | |

P = | 0 |

s = | 0 |

K = | 0 |

h = | 0 |

» Show Steps

In geometry, Equilateral triangles have all three of their sides equal.

A = angle A, B = angle B, C = angle C

a = side a, b = side b, c = side c

K = area, P = perimeter, s = semiperimeter, h = altitude

For example, A side length is a = 3:

- To calculate P, use the following formula: 3a. When substituting a for its value, you get 3(3), which equals 9.
- To calculate s, use the following formula: 3a/2. When substituting a and s for their values, you get 3(3)/2, which equals 4.5.
- To calculate K, use the following formula: (1/4) * √3 * a
^{2}. When substituting a for its value, you get (1/4) * √3 * 3^{2}, which equals 3.89711. - To calculate h, use the following formula: (1/2) * √3 * a. When substituting a for its value, you get (1/2) * √3 * 3, which equals 2.59808.

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