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Geomeetria 8. klass

Authored by Eliise Oss

Mathematics

8th Grade

Used 9+ times

Geomeetria 8. klass
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17 questions

Show all answers

1.

MULTIPLE SELECT QUESTION

45 sec • 1 pt

Kolmnurga pindala valem on

2⋅(a+b)2\cdot\left(a+b\right)  

a+b2\frac{a+b}{2}  

a⋅b2\frac{a\cdot b}{2}  

a⋅h2\frac{a\cdot h}{2}  

a⋅ba\cdot b  

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Ringi ümbermõõt....

... on sama, mis pindala

... võrdub πr2\pi r^2  

.... on sama, mis ringjoone pikkus

... vajab arvutamiseks kõrgust

3.

FILL IN THE BLANKS QUESTION

1 min • 1 pt

Mitu kraadi on kolmnurga sisenurkade summa

(a)  

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Mis on sisenurkade summa leidmise valem? (n tähistab nurkade arvu)

n ⋅ 180n\ \cdot\ 180  

(n−2)⋅180\left(n-2\right)\cdot180  

n−180n-180  

2n − 1802n\ -\ 180  

5.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Valisin nurga, mõõtsin selle ära, jagasin vastuse kahega ja tõmbasin sirge läbi. Mille ma joonestasin?

Nurgapoolitaja

Mediaani

Keskristsirge

Kõrguse

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

Kolmnurgale on joonestatud mediaanid. BE pikkus on 6 cm. Kui pikk on DG?

2 cm

1 cm

4 cm

3 cm

7.

FILL IN THE BLANKS QUESTION

1 min • 1 pt

Media Image

JI on ringi diameeter. Kui suur on sinine nurk?

(a)  

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