Cho tam giác ABC vuông tại A , đường cao AH . Gọi D và E lần lượt đối xứng với H qua các cạnh AB và AC a) C/m D, A , E thẳng hàng b) C/m BCED là hình thang c) C/m 0 90 DHE 

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asked Jun 11, 2022 48.6k views

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Cho tam giác ABC vuông tại A , đường cao AH . Gọi D và E lần lượt đối

xứng với H qua các cạnh AB và AC
a) C/m D, A , E thẳng hàng
b) C/m BCED là hình thang
c) C/m 0 90 DHE 

Mathematics
high-school

Opi asked

by Opi

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Answer:

Sorry i don't speak Vietnam so i can't help you if you write it in English i will have a chance to help you

Thomasgalliker answered Jun 16, 2022

by Thomasgalliker

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