Determine whether the sides given would form an acute, obtuse, or right triangle.
9, 7, 15
1 answer:
c^2 < a^2 + b^2 = acute
c^2 > a^2 + b^2 = obtuse
c^2 = a^2 + b^2 = right
15^2 = 225
7^2 + 9^2 = 49 + 81 = 130
c^2 = 225 but a^2 + b^2 = 130
c^2 > a^2 + b^2 so the triangle is an obtuse triangle
Answer:
9, 7, 15 sides would form an obtuse triangle.
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