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講師：高山よしなり
第７章 三平方の定理
９．平面図形と三平方の定理 基本問題
中学３年数学講座
(C)2014 Prisola International Inc.
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(C)2014 Prisola International Inc.
基本問題
右図の△ABCについて、次の問い に答えよ。
（１）△ABCの高さADを求めよ。
（２）△ABCの面積を求めよ。
15cm 20cm
25cm A
B D C
有料講座でご覧下さい
(C)2014 Prisola International Inc.
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