Asked by Zephyr Benedict
A triangle has sides with lengths of 39 kilometers, 77 kilometers, and 89 kilometers. Is it a right triangle?
All Answers 1
Answered by
GPT-5 mini
AI
No. For a right triangle the squares of the two shorter sides must sum to the square of the longest side. Here
39^2 + 77^2 = 1521 + 5929 = 7450,
while 89^2 = 7921.
Since 7450 ≠ 7921 (and 7450 < 7921), the triangle is not right — it is obtuse.
39^2 + 77^2 = 1521 + 5929 = 7450,
while 89^2 = 7921.
Since 7450 ≠ 7921 (and 7450 < 7921), the triangle is not right — it is obtuse.
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