Mathematics
Senior High

やり方教えてください!

Answers

《ヘロンの公式》
△ABCの面積=√s(sーa)(sーb)(sーc)
※s=(a+b+c)/2

⑴s=18/2 =9
√9×4×3×2 =6√6

⑵s=60/2 =30
√30×16×10×4 =80√3

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