mml=<math xmlns="http://www.w3.org/1998/Math/MathML"><mo>=</mo><msqrt><msup><mfenced separators="|"><mrow><mi>distancebetweentheir</mi><mo>ventre</mo></mrow></mfenced><mn>2</mn></msup><mo>-</mo><mfenced separators="|"><mrow><msub><mi mathvariant="normal">r</mi><mn>1</mn></msub><mo>+</mo><msub><mi mathvariant="normal">r</mi><mn>2</mn></msub></mrow></mfenced></msqrt><mspace linebreak="newline"/><mo>=</mo><msqrt><msup><mfenced separators="|"><mn>17</mn></mfenced><mn>2</mn></msup><mo>-</mo><msup><mfenced separators="|"><mn>15</mn></mfenced><mn>2</mn></msup></msqrt><mspace linebreak="newline"/><mo>=</mo><msqrt><mn>289</mn><mo>-</mo><mn>225</mn></msqrt><mspace linebreak="newline"/><mo>=</mo><msqrt><mn>64</mn></msqrt><mo>=</mo><mn>8</mn><mi>cm</mi></math>