In Exercises 17 and 18, for the triangle with the given vertices A, B , C, find the lengths of its sides, and deter- mine which of its angles are acute, obtuse, or right angles. 17/  A=(2,-3,6),B=(I,3,-2),C=(1,7,1)

Elementary Geometry For College Students, 7e
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ISBN:9781337614085
Author:Alexander, Daniel C.; Koeberlein, Geralyn M.
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Chapter2: Parallel Lines
Section2.4: The Angles Of A Triangle
Problem 7E: In Exercises 7 and 8, classify the trianglenot shown by considering the lengths of its sides a All...
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In Exercises 17 and 18, for the triangle with the given vertices A, B , C, find the lengths of its sides, and deter- mine which of its angles are acute, obtuse, or right angles.

17/  A=(2,-3,6),B=(I,3,-2),C=(1,7,1)

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