4. Mustahkamlash.( 15 min)
1 Darslikdan № 3, № 4, № 6. o`quvchilar tomonidan doskada bajarish.( 1 ball)
№ 3.
a) n= 3 , α - ?
Javob: 600
b) n = 18, α - ?
Javob: 1600
№ 4.
n = 6 tashqi burchagi - ?
Javob: 600
n = 12 tashqi burchagi -?
Javob: 300
5- masala: Muntazam n burchakning har uchidan bittadan olingan tashqi
burchaklari yig`indisi 360 gradusga tengligini isbotlang
2.Qo`shimcha adabiyotdan
qo`shimcha mashqlar.
(98-6-40) Muntazam sakkiz burchakning ichki burchaklari
nimaga teng?
A)5P/4; B)120; C)130 ; D)150; E)135
(98-8-48) Har bir tashqi burchagi 24 dan bo`lgan
muntazam ko`pburchakning nechta tomoni
bor
A)24; B)18; C)15; D)12; E)10
(98-11-89) Muntazam sakkizburchakning nechta dioganali
bor?
A)8; B)10 ; C)24; D)16; E)20
5. O`quvchilarni baholash va rag`batlantirish ( 2min)
Jurnaldagi tartib raqami
Familiyasi,ismi, sharifi:_________________________________________________________
Geometrik shakl
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Savol- javob
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test
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formula
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mustahkamlash
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Quydagilardan qaysi biri muntazam
ko`pburchaklar qatori?
A) kvadrat, parallelogramm, romb.
B) teng tomonli uchburchak, kvadrat.
C) romb, to`g`ri to`rtburchak, kvadrat.
D) muntazam beshburchak, kvadrat,romb.
6. Darsga yakun yasash
1. Muntazam n burchakning burchaklari
yig`indisi ga teng demak,
muntazam n burchakning har bir burchagi
formulasi bilan topiladi
2. Muntazam n burchakning bitta tashqi burchagi
Uyga vazifa
41-dars, 2- masala(og`zaki),
3-masala( f), 4-masala (a),
6-masala (a).
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