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Figuri geometrice în plan. Formule

Authored by Matematica ZE

Mathematics

10th Grade

Used 5+ times

Figuri geometrice în plan. Formule
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5 questions

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1.

MULTIPLE SELECT QUESTION

45 sec • 1 pt

Media Image

Teorema lui Pitagora este:

a2=b2+c2

c2=a2+b2

a2+b2=c2

b2=a2+c2

2.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Teorema sinusurilor este:

asinα+bsinβ+csinγ=2R\frac{a}{\sin\alpha}+\frac{b}{\sin\beta}+\frac{c}{\sin\gamma}=2R

asinα=bsinβ=csinγ=2R\frac{a}{\sin\alpha}=\frac{b}{\sin\beta}=\frac{c}{\sin\gamma}=2R

asinα=bsinβ=csinγ=2Π\frac{a}{\sin\alpha}=\frac{b}{\sin\beta}=\frac{c}{\sin\gamma}=2\Pi

3.

MULTIPLE SELECT QUESTION

45 sec • 1 pt

Teorema cosinusului este:


a2=b2+c22bccos(A)a^2=b^2+c^2-2bc\cos\left(\angle A\right)

b2=a2c22accos(B)b^2=a^2-c^2-2ac\cos\left(\angle B\right)

b2=a2+c22accos(B)b^2=a^2+c^2-2ac\cos\left(\angle B\right)

c2=a2+b22abcos(C)c^2=a^2+b^2-2ab\cos\left(\angle C\right)

4.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Suma unghiurilor interioare unui triunghi este:

222°222\degree

360°360\degree

180°180\degree

120°120\degree

5.

MULTIPLE SELECT QUESTION

45 sec • 1 pt

Media Image

Teorema catetei este

AC2=BCCDAC^2=BC\cdot CD

CB2=ACABCB^2=AC\cdot AB

BC2=CDDBBC^2=CD\cdot DB

AB2=BCBDAB^2=BC\cdot BD

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