Similarity (Grade 12 NSC Matric Mathematics): Quizzes

Shapes with same form but different sizes

Both conditions must be true

Only one condition needed; other follows

All corresponding angles equal

$\hat{X} = \hat{M}$ (third angles equal)

All three side pairs have same ratio

2 proportional sides + equal included angle

Similarity

Yes, all ratios equal $\frac{3}{1}$

$\frac{PQ}{BA} = \frac{QR}{AC} = \frac{PR}{BC}$