Question

a triangle has one 96° angle and two 42° angles. is this triangle scalene? yes no submit

Explanation:

Step1: Recall scalene triangle definition

A scalene triangle has all three sides (and thus all three angles) of different measures.

Step2: Analyze given triangle angles

The triangle has two angles of \(42^\circ\) and one angle of \(96^\circ\). Since two angles are equal, by the isosceles triangle theorem (if two angles are equal, the sides opposite them are equal), the triangle has at least two equal sides. So it is not scalene.

Answer:

no