【センター試験(類題)】重心【超わかる！高校数学Ⅰ・a】～演習～図形の性質＃１４
Synopsis
【センター試験(類題)】重心のポイントは！ ・平行四辺形の対角線は、それぞれの中点で交わる！ ・重心は、中線を 2 ： 1 に内分 ...
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