kayla98047 kayla98047
  • 11-09-2018
  • Mathematics
contestada

The lengths of the sides of a triangle are 18 km, 23 km, and 30 km. Is the triangle a right triangle, an acute triangle, or an obtuse triangle???

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law4rena law4rena
  • 11-09-2018

a^2 + b^2 = c^2 is right         a^2 + b^2 > c^2 is acute        a^2 + b^2 < c^2 is obtuse

a^2 + b^2 = c^2

18^2 + 23^2 = 30^2

324 + 529 = 900

853 < 900

obtuse


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