Question

va rog ma ajutati ???!@​

Answer 1

Răspuns:

buna

Explicație pas cu pas:

$\frac{15 \times 20}{2} = \frac{300}{2} = 150 {cm}^{2}$

$\frac{18 \times 12}{2} = \frac{216}{2} = 108 {cm}^{2}$

$10 \times 8 = 80 {cm}^{2}$

$\frac{12 \times 8}{2} = \frac{96}{2} = 48 {cm}^{2}$

$16 \times 10 = 160 {cm}^{2}$

$\frac{6 \times 6}{2} = \frac{36}{2} = 18 {cm}^{2}$

$\frac{ 3\sqrt{2 \times 3\sqrt{2} } }{2} = \frac{9 \times 2}{2} = \frac{18}{2 } = 9 {cm}^{2}$

$\frac{(10 + 7) \times 12}{2} = \frac{17 \times 12}{2} = \frac{204}{2} = 102 {cm}^{2}$

$11 \times 9 = 99 {cm}^{2}$

Sper ca te-am ajutat