Question

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A triangle has sides with lengths 17, 12, and 9. Is the triangle right, acute, or obtuse?
Question 1 options:

A)

Can't be determined

B)

Obtuse

C)

Right

D)

Acute

Answer 1

obtuse

Explanation:

Answer 2

b) obtuse

Explanation:

If this is a right triangle the hypotenuse would be

c² = 9² + 12²

c² = 81 + 144

c² = 225

c = √225

c = 15

Since the third side is 17 which is longer than 15

the triangle is obtuse