A6 = AG H2 ⇔√ 3DA⇔ SO = ASO 2 = 3 4 SO 2 + A 42

2 . - DAP AN DE THI THU SO 05
Toán DAP AN DE THI THU SO 05

2 . a

6 = a

G H

2

⇔

√ 3

D

A

⇔ SO = a

SO 2 = 3 4

SO 2 + a 4

2