Question

triangles second day
classify each triangle by its sides.
1)
5.5
40°
3.6
40° 100°
3.6
a) equilateral
b) isosceles
c) scalene
classify each triangle by its angles.

Explanation:

Step1: Recall side - based triangle classification rules

An equilateral triangle has all sides equal, an isosceles triangle has two sides equal, and a scalene triangle has all sides different.

Step2: Analyze the side lengths of the given triangle

The side lengths are 5.5, 3.6, 3.6. Since two sides have the same length (3.6), it is an isosceles triangle.

Answer:

B) isosceles