1. Doirani chizing va ta’riflang diametri 18 cm bo’lgan doirani yuzini toping

Variant-9
1.Doirani chizing va ta’riflang diametri 18 cm bo’lgan doirani yuzini toping.
2.Asosi to’g’ri to’rtburchak bo’lgan prizmani chizing a=8 cm b=6,4 cm, h=12,2 , asosi yuzi,prizma yon sirtini yuzi va hajmini hamda perimetrini hisoblang.
3.O’tmas burchak 120 ⁰ teng tashqi burchagini aniqlang.Qanday burchak hosil bo’ladi chizing !

Variant-10

1.Teng yonli uchburchakni yuzini hisoblang a=5,6 cm, b=6,6 cm, h=6,4 ichki burchaklarini qo’ying.
2.Aylana ichiga sakkizburchak chizing va burchak o’lchamlarini qo’ying !
3.Trapetsiya chizing a=12 cm ,b= 8 cm ,h=9,6 cm o’lchamlarini qo’yib trapetsiya yuzini va burchaklar o’lchamlarini toping !
Variant-11
1.O’tkir burchakni 60 ⁰ teng qilib chizing va tashqi burchagini toping.
2.Radiusi 12,8 cm teng bo’lgan sharni yuzi va hajmini toping.
3.Konus radiusi r=18,8 cm teng,balandligi h=32,6 cm bo’lsa konus chizib uni asosi uzunligini, konus yon sirtining yuzasi va hajmini toping.
Variant-12
1.Aylana chizing uni diametri 56,4 cm bo’lsa aylana uzunligini toping.
2.Silindir chizing uni asosini diametri 48,6 cm balandligi h=1 m bo’lsa yon sirti va hajmini toping.
3.Asosi to’g’ri burchakli uchburchak bo’lgan pirameda chizing a=5 cm ,c=13 cm, m=68,6 cm, h=66,8 cm bo’lsa ushbu piramidani asosi yuzasini ,yon sirtini va hajmini toping.