Question

Classify the triangle by sides.

8, 15, 17

acute

O right

not a triangle

obtuse

Answer 1

right triangle

Explanation:

The square of the longest side is equal to the sum of the squares on the other 2 sides, that is

17² = 289

8² + 15² = 64 + 225 = 289

Thus by Pythagoras' identity the triangle is right

Answer 2

Acute

Explanation:

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