Jarak

Definisi di R1

Andaikan titik A, dengan koordinat Failed to parse (SVG (MathML can be enabled via browser plugin): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle x_1}

Andaikan titik B, dengan koordinat Failed to parse (SVG (MathML can be enabled via browser plugin): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle x_2}

Jarak antara titik A dan B didefinisikan sebagai Failed to parse (SVG (MathML can be enabled via browser plugin): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle \left | x_1 - x_2 \right \vert}

Definisi di R2

Andaikan titik A, dengan koordinat Failed to parse (SVG (MathML can be enabled via browser plugin): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle (x_1,y_1)}

Andaikan titik B, dengan koordinat Failed to parse (SVG (MathML can be enabled via browser plugin): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle (x_2,y_2)}

Andaikan titik C, dengan koordinat Failed to parse (SVG (MathML can be enabled via browser plugin): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle (x_1,y_2)}

Titik-titik A,B,C dapat membentuk segitiga, dengan :

Garis AC merupakan sisi mendatar

Garis CB merupakan sisi tegak

Garis AB merupakan sisi miring

Jarak antara titik A dan B didefinisikan sebagai panjang garis AB.

Panjang garis AB dapat dicari mengggunakan teorema pythaghoras, yaitu Failed to parse (SVG (MathML can be enabled via browser plugin): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle (x_1 - x_2)^2 + (y_1 - y_2)^2 = AB^2 }