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VMariaS [17]
3 years ago
13

Triangle ptg has side lengths of 18 27 cm and 13 cm what type of triangle is it

Mathematics
1 answer:
diamong [38]3 years ago
6 0
Angle PTG = arccos((18^2 + 13^2 - 27^2) / (2 x 18 x 13)) = arccos(-236 / 468) = arccos(-0.5043) = 120 degrees.

The triangle is an obtuse triangle (because one of the angles is greater than 90 degrees) and a scalene triangle (because all the sides are not equal).
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\begin{gathered}\\ \sf\longmapsto 259.84-168.78\end{gathered}

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