
ĐỊNH LÝ PYTAGO
Authored by Huy Nguyễn
Mathematics
7th Grade

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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Tam giác ABC ở hình vẽ trên là?
Tam giác vuông cân tại C
Tam giác đều
Tam giác tù
Tam giác nhọn
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Cho tam giác ABC vuông tại B. Khi đó:
AB2 + BC2 = AC2
AB2 - BC2 = AC2
AB2 + AC2 = BC2
AB2 = AC2 + BC2
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Tam giác nào là tam giác vuông trong các tam giác có độ dài ba cạnh như sau:
15 cm; 8 cm; 18 cm
21 cm; 20 cm; 29 cm
5 cm; 6 cm; 8 cm
2 cm; 3 cm; 4 cm
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Cho tam giác ABCD là hình vuông cạnh 4cm (hình vẽ). Khi đó, độ dài đường chéo AC là:
AC = 5cm
AC = 8cm
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Cho vuông tại A có AB = 8 cm; AC = 6 cm thì BC bằng :
A. 25 cm
B. 14 cm
C. 100 cm
D. 10 cm
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Tam giác nào KHÔNG là tam giác vuông trong các tam giác có độ dài ba cạnh là:
3cm, 4cm, 5cm
6cm, 8cm, 10cm
5cm, 12cm, 13cm
7cm, 8cm, 9cm
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Tính đường chéo của một mặt bàn hình chữ nhật có chiều dài 10dm, chiều rộng 5dm.
75 dm
125 dm
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