Giải vở bài tập Toán Hình học 7 chương II bài 5: Trường hợp bằng nhau thứ ba của tam giác góc – cạnh – góc

Thứ ba - 29/10/2019 08:40
Hướng dẫn Giải vở bài tập Toán Hình học 7 chương II bài 5: Trường hợp bằng nhau thứ ba của tam giác góc – cạnh – góc (g.c.g)
Bài 1:
giai vbt toan hinh hoc 7 chuong 4 bai 1 cau 1
Vẽ đoạn thẳng AC = 2cm.
Trên cùng một mặt phẳng bờ AC, vẽ các tia Ax và Cy sao cho tia Ax vuông góc với AC, tia Cy tạo với AC một góc 60o. Hai tia Ax và Cy cắt nhau tại B, ta được tam giác ABC.

Bài 2:
GT , Ot là tia phân giác
H ∈ Ot, AB ⊥ Ot, A ∈ Ox, B ∈ Oy
KL AB = OB
b) C ∈ Ot, CA = CB và =

giai vbt toan hinh hoc 7 chuong 4 bai 1 cau 2
Bài 3:
giai vbt toan hinh hoc 7 chuong 4 bai 1 cau 3
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