Bài tập theo Tuần toán 8- Tuần 30 !!

A. 6cm

B. 7cm

C. 8cm

D. 9cm

A. 12cm

B. 10cm

C. 8cm

D. 6cm

A. 2/3

B. 3/2

C. 9/4

D. 4/9

$A.\frac{AB}{BC}=\frac{QR}{PR}$

$B.\frac{AB}{BC}=\frac{PR}{QR}$

$C.\widehat{A}=\widehat{Q}$

$D.\widehat{B}=\widehat{P}$

$A.\frac{3}{5}$

$B.\frac{4}{5}$

$C.\frac{3}{4}$

$D.\frac{5}{3}$

A. 10 cm

B. 9cm

C. 8cm

D. 7cm

$A.\frac{BM}{AC}$

$B.\frac{MN}{BC}=\frac{BA}{BC}$

$C.\frac{NC}{BA}=\frac{AC}{MA}$

$D.\frac{AM}{BM}=\frac{AN}{NC}$

$A.\frac{AB}{IK}=\frac{BC}{HI}$

$B.\frac{AB}{BC}=\frac{HI}{IK}$

$C.\frac{AB}{AC}=\frac{IK}{HK}$

$D.\frac{BC}{HI}=\frac{AC}{IK}$

$A.\Delta ABC~\Delta DEF$

$B.\Delta ABC~\Delta EDF$

$C.\Delta ABC~\Delta DFE$

$D.\Delta ABC~\Delta FED$

$A.\frac{5}{7}$

$B.\frac{12}{5}$

$C.\frac{7}{5}$

$D.\frac{5}{12}$

$A.\frac{AB}{CD}=5$

$B.\frac{AB}{CD}=\frac{1}{5}$

$C.\frac{CD}{AB}=5$

$D.\frac{CD}{AB}=\frac{1}{5}$

A. 1/2

B. 2

C. 3

D. 18