Al-Xorazmiy Test

Chizma 1	1
0
Chizma 2	5	4
Chizma 3	9	16

1. 
   Chizma 20 da nechta uchburchak mavjud?
   
2. 
   8-chizmada, yulduzchalar soni uchburchaklar sonidan qanchaga ko’p?
   

(A) a = 77, b = 176 (B) a = 57, b = 147 (C) a = 71, b = 154 *(D) a = 77, b = 167