Question

aflati aria unui dreptunghi cudimensiunea de 7,5 cm si 81pe8

Answer 1

$L= \frac{81}{8} \ cm=10,125 \ cm \\ l=7,5 \ cm \\ A=L*l \\ A=10,125 \ cm*7,5 \ cm \\ \boxed{A=75,9375 \ cm^2}$

Answer 2

$\frac{81}{8}cm= 10,125cm \\ A_{dreptunghiului}= 7,5cm*10,125cm \\ A_{dreptunghiului}=75,9375 cm^{2}$