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01-12-2018
Mathematics

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the coordinates of point G are (7,-2). the coordinates of point H are (7, 10). What is the distance between point G and point H

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01-12-2018

[tex]\displaystyle\\\text{We use Pitagora's theorem.}\\\\GH = \sqrt{(Hx-Gx)^2 + (Hy-Gy)^2}=\\ \\=\sqrt{(7-7)^2 + (10-(-2))^2}=\\\\=\sqrt{0^2 + (10+2)^2}=\\\\=\sqrt{0+(12)^2}=\\\\=\sqrt{144}=\boxed{\bf12}[/tex]

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