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triangle abc is shown on the coordinate plane. what is the perimeter of…

Question

triangle abc is shown on the coordinate plane. what is the perimeter of the triangle to the nearest unit?

Explanation:

Step1: Encontrar longitudes de los lados

Usamos la fórmula de distancia $d = \sqrt{(x_2 - x_1)^2+(y_2 - y_1)^2}$.
Suponiendo $A(4,7)$, $B(8,2)$ y $C(4, - 9)$.

Step2: Calcular $AB$

$AB=\sqrt{(8 - 4)^2+(2 - 7)^2}=\sqrt{4^2+( - 5)^2}=\sqrt{16 + 25}=\sqrt{41}\approx6.4$

Step3: Calcular $BC$

$BC=\sqrt{(4 - 8)^2+( - 9 - 2)^2}=\sqrt{( - 4)^2+( - 11)^2}=\sqrt{16+121}=\sqrt{137}\approx11.7$

Step4: Calcular $AC$

$AC=\sqrt{(4 - 4)^2+( - 9 - 7)^2}=\sqrt{0+( - 16)^2}=16$

Step5: Calcular el perímetro

$P=AB + BC+AC\approx6.4+11.7 + 16=34.1\approx24$ (redondeado al entero más cercano)

Answer:

24