Raportul ariilor a doua triunghiuri asemenea este egal cu.....

patratul raportului de asemanare

Raza cercului circumscris unui triunghi este egala cu....

$$\frac{a\cdot b\cdot c}{4\cdot A\Delta}$$

$$\frac{n\cdot\left(n+1\right)}{2}$$

Un numar este divizibil cu 9 daca si numai daca.....

suma cifrelor din care este format numarul este divizibila cu 9

Punctul de intersectie al bisectoarelor unui triunghi reprezinta....

centrul cercului inscris in triunghi

Unghiurile adiacente au....

un varf comun, o latura comuna si interioarele disjuncte

O dreapta este paralela cu un plan daca

este paralela cu o dreapta din acel plan

$$\frac{cateta\ \ alaturata\ }{ipotenuza}$$

$$\sqrt[]{A\pm\sqrt[]{B}}=$$

$$\sqrt[]{\frac{A+C}{2}}\pm\sqrt[]{\frac{A-C}{2}}$$

Aplicand teorema lui Thales obtinem.....

$$\frac{BE}{BA}=\frac{CF}{CA}$$

Prin distanta de la un punct la o dreapta intelegem.......

perpendiculara pe dreapta respectiva

Formula mediei aritmetice ponderate a numerelor a,b si c cu ponderile x, y si z este......

$$\frac{a\cdot x+b\cdot y+c\cdot z}{x+y+z}$$

flashcard teorie 2 Flashcards

Student preview

67 questions

Show all answers

1.

FLASHCARD QUESTION

Front

Alege formula pentru aria paralelogramului

Back

2.

FLASHCARD QUESTION

Front

Dreptunghiul cu doua laturi consecutive congruente se numeste

Back

patrat

3.

FLASHCARD QUESTION

Front

Partea intreaga a unui numar rational reprezinta

Back

cel mai mare numar intreg, mai mic sau egal cu numarul dat

4.

FLASHCARD QUESTION

Front

Cubul are .......muchii congruente

Back

12

5.

FLASHCARD QUESTION

Front

Fractia supraunitara are

Back

numaratorul mai mare decat numitorul

6.

FLASHCARD QUESTION

Front

Afirmatia " 0 este cel mai mic divizor al tuturor numerelor " este....

Back

falsa

7.

FLASHCARD QUESTION

Front

Diagonalele rombului sunt....

Back

bisectoare ale unghiurilor

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