Mathematics: T(8,15) is the midpoint of cd. the coordinates of d are (8,20) what are the coordinates of c

T(8,15) is the midpoint of cd. the coordinates of

Ответ:

lelseymota123

30.12.2021

$coordinates\ of\ C(x,y)\\\\coordintaes\ of\ D(8,20)\\\\ T(8,15)=(\frac{8+x}{2}\ ;\ \frac{20+y}{2})\\\\8=\frac{8+x}{2}\ \ |*2\\\\16=8+x\\\\ 16-8=x\\\\x=8\\\\ 15=\frac{20+y}{2}\ \ |*2\\\\ 30=20+y\\\\y=30-20\\\\y=10\\\\ Q=(8,10)$

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Ответ:

hinojosachristian1

11.11.2021

Mathematics

I think it will be 140cm3 because you would do 7x20 to get your answer

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T(8,15) is the midpoint of cd. the coordinates of d are (8,20) what are the coordinates of c

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