Question

un dreptunghi are lungimea egala cu 8 cm si latimea 3/4 (3 supra 4) din lungime. Aflati Aria

Answer 1

$L = 8 \: cm$

$l = \frac{3}{4} \times L = \frac{3}{4} \times 8 = \frac{3 \times 8}{4} = \frac{24}{4}$

$l = 6 \: cm$

$A = L \times l = 8 \times 6 = 48 \: {cm}^{2}$