Question

Aria suprafeței totale a unui cub cu muchia de 4 cm 1,4 cm

Answer 1

$l = 4 \: cm$

$A_t = 6 {l}^{2} = 6 \times {4}^{2} = 6 \times 16 = 96 \: {cm}^{2}$

$l = 1.4 \: cm$

$A_t = 6 {l}^{2} = 6 \times {1.4}^{2} = 6 \times 1.96 = 11.76 \: {cm}^{2}$