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ヘロンの公式を使いましょう。
S=√s(s-a)(s-b)(s-c)
s=(a+b+c)/2=(3+6+7)/2=8
S=√8(8-3)(8-6)(8-7)=√8×5×4×1=√160=4√10
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ヘロンの公式を使いましょう。
S=√s(s-a)(s-b)(s-c)
s=(a+b+c)/2=(3+6+7)/2=8
S=√8(8-3)(8-6)(8-7)=√8×5×4×1=√160=4√10
Users viewing this question
are also looking at these questions 😉
ありがとうございます！
すごい分かりやすいです！！