paralelograme

trapeze dreptunghice

trapeze isoscele

trapeze oarecare

trapez dreptunghic

paralelogram

trapez isoscel

dreptunghi

trapeze isoscele

hexagoane

triunghiuri echilaterale

patrate

paralelogram

trapez dreptunghic

dreptunghi

trapez isoscel

paralelogram

trapez dreptunghic

dreptunghi

trapez isoscel

Adevarat

Fals

$\frac{P_{b\ }\cdot a_t}{2}$

$\frac{\left(P_{b\ }+P_{B\ }\right)\cdot a_t}{2}$

$\frac{A_{b\ }\cdot a_t}{2}$

$\frac{A_{b\ }\cdot h}{3}$

$A_{l\ }+2\cdot A_b$

$A_{l\ }+2\cdot A_B$

$A_{l\ }+A_b+A_B$

$\frac{P_B\cdot a_t}{2}\ +A_b$

$\frac{h}{3}A_B$

$\frac{h}{3}\left(A_b+A_B+\sqrt{A_B\cdot A_b}\right)$

$\frac{A_b\cdot h}{3}$

$\frac{h}{3}\left(A_b+A_B+\sqrt{A_B+A_b}\right)$