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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

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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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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User TheLoneJoker
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7.0k points

1 Answer

1 vote

coordinates\ of\ C(x,y)\\\\coordintaes\ of\ D(8,20)\\\\ T(8,15)=((8+x)/(2)\ ;\ (20+y)/(2))\\\\8=(8+x)/(2)\ \ |*2\\\\16=8+x\\\\ 16-8=x\\\\x=8\\\\ 15=(20+y)/(2)\ \ |*2\\\\ 30=20+y\\\\y=30-20\\\\y=10\\\\ Q=(8,10)
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User Wouter Schoofs
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8.3k points
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