Ariile figurilor geometrice

Question 1

Aria unui triunghi oarecare

Answer 1

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

Question 2

Aria unui triunghi drept

Answer 2

A= (c1*c2)/2,

Question 3

Aria unui triunghi echilateral

Answer 3

: A= (l^2 √3)/4

Question 4

Aria unui patrulater oarecare

Answer 4

Se descompune în triunghiuri

Question 5

Aria unui paralelogram

Answer 5

A=h*l

Question 6

Aria unui dreptunghi

Answer 6

A=L*l

Question 7

Aria unui pătrat

Answer 7

A=l^2

Question 8

Aria unui romb

Answer 8

A=hl, A= (d_1d_2)/2

Question 9

Aria unui trapez

Answer 9

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

Question 10

Aria unui cerc

Answer 10

πR^2

Question 11

Aria unui hexagon regulat

Answer 11

A= (3l^2 √3)/2