emilymitre22 emilymitre22
  • 11-02-2018
  • Mathematics
contestada

what is the area of a triangle with the coordinates (-4,14) (10,0) (-14,-10)

Respuesta :

soniayeung1243oxuz6x
soniayeung1243oxuz6x soniayeung1243oxuz6x
  • 11-02-2018
you can use Heron Formula in the calculator to output the result, but i still show you the steps on paper thro

lengths of the 3 lines:  \sqrt{392} ,  \sqrt{676} ,  \sqrt{676} 

s= (\sqrt{392} + \sqrt{676} + \sqrt{676})/2=35.89949494

area= \sqrt{s(s- \sqrt{392} )(s- \sqrt{676})^2 } =238
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