Đề thi Giữa kì 2 Toán 8 năm 2025-2026 trường THCS Động Đạt I (Thái Nguyên)

$\dfrac{2x+1}{3x-1}$

$\dfrac{\sqrt{x}}{x-3}$

$\dfrac{2x+1}{x-3}$

$\dfrac{2x-1}{x-3}$

$M=24x$

$M=3x^2$

$M=6xy$

$M=3x$

$x \neq -2$

$x \neq 1$

$x=2$

$x \neq 2$

$\dfrac{2x}{5y}$

$\dfrac{2}{5}$

$\dfrac{2y^2}{5}$

$\dfrac{2}{5y^2}$

$0x+2=0$

$2x+1=0$

$-2x=0$

$\dfrac{x}{2}+3=0$

$\dfrac{2}{3}$

$\dfrac{1}{3}$

$2$

$\dfrac{1}{2}$

$\triangle DEF \sim \triangle IHK$

$\triangle DEF \sim \triangle HIK$

$\triangle EFD \sim \triangle IHK$

$\triangle EDF \sim \triangle HKI$

1 cm, 1 cm, 2 cm

2 cm, 4 cm, 30 cm

5 cm, 4 cm, 3 cm

3 cm, 2 cm, 5 cm

$\triangle ABC \backsim \triangle MNP$

$\triangle ABC \backcong \triangle PMN$

$\triangle ABC \backcong \triangle PNM$

$\triangle ABC \backsim \triangle NMP$