Ariile figurilor geometrice Flashcards

1
Q

Aria unui triunghi oarecare

A

A = (hl)/2,
A = √(p(p-a)(p-b)(p-c))
A = (a
bsin⁡(a;b))/2 = (bcsin⁡(b;c))/2 = (ac*sin⁡(a;c))/2

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2
Q

Aria unui triunghi drept

A

A= (c1*c2)/2,

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3
Q

Aria unui triunghi echilateral

A

: A= (l^2 √3)/4

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4
Q

Aria unui patrulater oarecare

A

Se descompune în triunghiuri

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5
Q

Aria unui paralelogram

A

A=h*l

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6
Q

Aria unui dreptunghi

A

A=L*l

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7
Q

Aria unui pătrat

A

A=l^2

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8
Q

Aria unui romb

A

A=hl, A= (d_1d_2)/2

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9
Q

Aria unui trapez

A

A= ((B+b)h)/2, A= l_mijh

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10
Q

Aria unui cerc

A

πR^2

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11
Q

Aria unui hexagon regulat

A

A= (3l^2 √3)/2

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