QUESTION IMAGE
Question
what is the area of rectangle abcd? round to the nearest tenth. for help, see this worked example.type the correct answer in the box. use numerals instead of words.15.0 square units
Step1: Identificar coordenadas de los vértices
Los vértices del rectángulo son: $A(-6, 4)$, $B(-4, 2)$, $C(4, 6)$, $D(2, 8)$
Step2: Calcular longitud de AB
Usar fórmula de distancia: $\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}$
$\text{Longitud } AB = \sqrt{(-4-(-6))^2+(2-4)^2} = \sqrt{(2)^2+(-2)^2} = \sqrt{4+4} = \sqrt{8} = 2\sqrt{2}$
Step3: Calcular longitud de BC
Usar fórmula de distancia: $\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}$
$\text{Longitud } BC = \sqrt{(4-(-4))^2+(6-2)^2} = \sqrt{(8)^2+(4)^2} = \sqrt{64+16} = \sqrt{80} = 4\sqrt{5}$
Step4: Calcular área del rectángulo
Área = longitud × anchura
$\text{Área} = 2\sqrt{2} \times 4\sqrt{5} = 8\sqrt{10} \approx 8 \times 3.162 = 25.3$
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25.3