Mavzu: To’g’ri burchakli parallelepiped va kub Darsning shiori Yetti o`lchab bir kes

4. Mustahkamlash:

1) To`g`ri burchakli parallelepiped deganda nimani

tushunasiz?Kub deganda-chi? Ularning shakllarini

chiza olasizmi

2) To`g`ri burchakli parallelepipedning

nechta yoq , nechta

qirra va nechta uchga ega ?

1 Kubning qirrasini uzunligi 5sm ga teng. Kub sirti yuzini toping.

• 6* 25=150
• 6*5=30

c)4*15=60

2 To`g`ri burchakli parallelepipedning sirt yuzi formulasini toping.

a)S=2ab+2ac+2bc

b)S=6* a²

c)S=1 / 2 a * b

3)O`lchamlari a=5 sm , b=4 sm , c=6 sm bo`lgan to`g`ri burchakli

parallelepipedning barcha

qirralari yig`indisini toping.

a) 45sm b) 60 sm c) 75sm

4) Kubning qirrasining uzunligi 10 sm ga teng. Kubning barcha qirralari yig`indisini toping.

a)120 sm

b)110 sm

c)60 sm

5)Kubning barcha qirralari uzunligi 72 sm ga teng .

Shu kubning sirt yuzini toping.

a)120 sm²

b)216 sm²

c)205 sm²

6) To`g`ri burchakli parallelepipedning o`lchamlari

a=7 sm, b=4 sm , c=2sm . Uning barcha qirralari

uzunliklari yig`indisi va sirti yuzini toping.

7)Kubning barcha qirralari uzunligi 84 sm gat eng.

Shu kubning sirti yuzini toping

8) Kubning qirrasi 5m .Shu kubning barcha qirralari

yig`indisi va sirti yuzini toping