Hướng dẫn giải bài tập SGK Toán lớp 5 trang 96, 97: Hình tròn, đường tròn

Thứ bảy - 06/01/2018 09:45
Hướng dẫn giải bài tập SGK Toán lớp 5 trang 96, 97: Hình tròn, đường tròn

Câu 1: Vẽ hình tròn có

a) Bán kính 3 cm                        
b) Đường kính 5cm

Câu 2: Cho đoạn thẳng AB = 4 cm. Hãy vẽ hai đường tròn tâm A và B đều có bán kính 2 cm.

Câu 3: Vẽ theo mẫu

HƯỚNG DẪN GIẢI

Câu 1: Vẽ hình tròn như sau:

 

Câu 2:

 

Câu 3:

Cách vẽ:

-Vẽ đường tròn tâm O bán kính AB

-Vẽ nửa đường tròn đường kính AO

-Vẽ nửa đường tròn đường kính OB

  Ý kiến bạn đọc

Theo dòng sự kiện

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