4.1.57. masala.
Aylanaga ichki chizilgan muntazam uchburchakning perimetri 21 ga
teng bo’lsa, shu aylanaga ichki chizilgan muntazam to‘rtburchakning
perimetrini
toping?
4.1.58. masala.
Muntazam ko‘pburchakning perimetri 60 ga , unga ichki chizilgan
aylananing radiusi 8 ga teng. Shu ko’pburchak yuzini toping?
4.1.59. masala.
Muntazam n burchakning ichki burchagi tashqi burchagidan 5 marta
katta bo’lsa, shu ko’pburchak dio’gonallari sonini toping?
4.1.60. masala.
Muntazam oltiburchakka tashqi
chizilgan aylananing
r
adiusi
3
5
ga teng. Uning parallel
tomonlari
orasidagi masofani toping?
Mustaqil ish uchun topshiriqlar:
1 -masala.
On ikkiburchakning nechta diagonali bor?
2- masala
. Aylanaga ichki chizilgan muntazam uchburchakning perimetri 27 ga teng
bo’lsa, shu aylanaga ichki chizilgan muntazam to‘rtburchakning perimetrini toping?
3 –masala.
Ko’pburchakning diagonallari soni 90 ta bo’lsa, tomonlari sonini toping?
4- masala.
Qavariq 13 burchakning nechta diagonali bor?
5- masala.
Agar ko’pburchakning tomonlari soni 30 ta bo’lsa,
diagonallari sonini
toping?
6 –masala.
Qavariq yetiburchakning barcha ichki burchaklarining yig’indisi
necha
gradus?
7- masala.
Radiusi 6 bo’lgan aylanaga muntazam uchburchak ichki chizilgan bo’lib,
bu uchburchak tomoniga kvadrat yasalgan. Kvadratga
tashqi chizilgan aylananing
radiusini toping?
O
R
A
B