Mathematics
Junior High
赤線は答えです。xの所左側が4センチになるのは分かるんですけど右側はなぜ3センチとわかるんですか？
P
g
r
= 4: (4+4)
=24
=7
r
4 cm
410.cm
4
xcm
6
x=
4 cm
4cm
平行線をひ
考えよう。
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