Question

Raportul lungimilor laturilor a doua patrate este 0,25
calculati raportul:
a) perimetrelor patratelor
b)ariilor patrstelor

Answer 1

$\frac{l_1}{l_2}=0,25=\frac{\not 25}{\not 100}=\frac{1}{4} \\\\ \frac{l_1}{l_2}=\frac{1}{4} \\\\\\ a)P=4l \\\\ \frac{4*l_1}{4*l_2}=\frac{4*1}{4*4} \\\\ \frac{P_1}{P_2}=\frac{4}{16} \\\\\\ b)A=l^2 \\\\ \frac{l_1^2}{l_2^2}=\frac{1^2}{4^2} \\\\ \frac{A_1}{A_2}=\frac{1}{16}$