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CE=xとおく
AB:BE=EC:CD
8:19-x=x:6
x(19-x)=48
xの2乗-19x+48=0
(x-3)(x-16)=0
BE>ECより
x=3
ありがとうございます!
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CE=xとおく
AB:BE=EC:CD
8:19-x=x:6
x(19-x)=48
xの2乗-19x+48=0
(x-3)(x-16)=0
BE>ECより
x=3
ありがとうございます!
Users viewing this question
are also looking at these questions 😉
丁寧にありがとうございます!求め方もわかったしスッキリしました