Question

1. which type of triangle has side measures of 5 cm, 9 cm, and 12.7 cm and one angle measure of 128°? (1 point) acute isosceles obtuse scalene obtuse isosceles acute scalene

Explanation:

• Obtuse: An angle of \(128^{\circ}\) is greater than \(90^{\circ}\), so the triangle is obtuse.
• Scalene: All side lengths (\(5\) cm, \(9\) cm, \(12.7\) cm) are different, so the triangle is scalene.

Answer:

obtuse scalene