Câu 16 Trang 106: So sánh
Lớp 9 SGK Toán tập 1

Câu 16 Trang 106: So sánh

Lời giải:

Kẻ  OH ⊥ EF

Xét △OHA vuông tại H , ta có : OH

=>  BC

Vậy BC

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Hi, I'm David Smith

I'm David Smith, husband and father , I love Photography,travel and nature. I'm working as a writer and blogger with experience of 5 years until now.

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