|
17. 2 ta to`g`ri chiziqning kesishishidan hosil bo`lgan bir burchak 1020 bo`lsa qolgan burchaklarni toping.
A) 1020 , 780 , 1020 B) 780 , 1020, 780 C) 680, 1100, 680 D) 460,540,460
18. O`nburchakning nechta diogonali bor?
A) 30 ta B) 35 ta C) 42 ta D) 40 ta
x – 2 x +1
19. —— - 1 = —— - 2 tenglamani yeching. _______________
5 4
20. Ikki sonning yig`indisi 11 ga teng, ularning ko`paytmasi 30 ga teng shu sonlarni toping. ______________
a2 . (a3)5
21. ———— ni soddalashtiring _____________________
(a2)8
22. a2 (b2 + c2) – c2 (a2 – b2) – b2 (a2 + c2) soddalashtiring ________________
23. Teng yonli uchburchakning asosiga tushirilgan bissehtrisasi uzunligi 8 sm, uchburchakning perimetri 40sm bo`lsa, hosil bo`lgan uchburchaklar perimetrlarini toping.__________________
24. Qo`shni burchaklarning biri ikkinchisidan 240 ortiq bo`lsa, ulardan kichigini toping. ________________
25. Teng yonli uchburchakning asosi yon tomonlaridan ikki marta uzun uning perimatri 40 sm bo`lsa, uning tomonlarini toping._______________
\\7-matematika kaliti :
1
|
2
|
3
|
4
|
5
|
6
|
7
|
8
|
9
|
10
|
11
|
12
|
13
|
14
|
15
|
16
|
17
|
18
|
B
|
C
|
A
|
C
|
A
|
B
|
D
|
A
|
A
|
B
|
C
|
A
|
A
|
A
|
C
|
A
|
B
|
B
|
19.X=7
20.5va6
21.a
22.0
23.28sm
24.78sm
25.10sm,20sm,10sm
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