Page 2 - qua1
P. 2
.4
A (3.4) 3: 4: 5 43
B (0.0) D (3.0) C (6.0) .5 AB AC
3 AB + BC + AC = 5 + 6 + 5 =
.5
60 20
.=
60 30
=
3
30
.6
11 1 3
3 2=
= 3 = 3 =
2 2
33
– .7
16 17 –
. 19 17 –
2
