Sonini shunday ikki bo`lakka bo`linganni, birining 80 I, ikkinchisining 24 ini tashkil etadi bo`laklarning kichigini toping

bissektrisasi tasvirlangan. Agar AB =5

va BC= 7 bo'lsa, DC:AC nisbatni toping

A) B) C) D)

20. Rasmd,a ABC uchburchak va uning BD

medianasi tasvirlangan .Agar

AC =2BD va CAB = 22⁰ bo'lsa,

ACB burchakni toping

A) 52⁰ B) 62⁰ C) 58⁰ D) 68⁰