Question

classify the triangle by angles and sides. obtuse isosceles right scalene acute isosceles obtuse scalene

Explanation:

Step1: Classify by angles

Since one angle is \(122^{\circ}\) (greater than \(90^{\circ}\)), it is an obtuse triangle.

Step2: Classify by sides

The side lengths are \(7\) in, \(10\) in, and \(18\) in. All sides are of different lengths, so it is a scalene triangle.

Answer:

Obtuse Scalene