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24-11-2020
Mathematics

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Find the area of a triangle with vertices (1, 5), (1, -2), (3,-2).

Respuesta :

xenia168 xenia168

24-11-2020

Answer:

Step-by-step explanation:

A(3, - 2), B(1, 5), C(1, - 2)

ΔABC is right angled Δ

AC and BC are legs (cathetus)

[tex]A_{ABC}[/tex] = (AC)(BC) ÷ 2 = [tex]\frac{2*7}{2}[/tex] = 7 units²

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