If p (15, 20) is the midpoint of the line segment joining A (12, 25) and B
(18, y + 5) then y = ?
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mid point of AB=(15,20)
( 12+18/2 ,25+y+5/2) =(15,20)
(30/2, 30+y/2) =(15,20)
(15,30+y/2)=(15,20)
equate both sides
30+y/2 =20
30+y=2×20
30+y=40
y=40-30
y=10 is answer obtained
( 12+18/2 ,25+y+5/2) =(15,20)
(30/2, 30+y/2) =(15,20)
(15,30+y/2)=(15,20)
equate both sides
30+y/2 =20
30+y=2×20
30+y=40
y=40-30
y=10 is answer obtained
malhotraprem75248:
thank you
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