Your friend draws a triangle with side length of 25.3 centimeters, 15.6 centimeters, and 12.6 centimeters. Classify your friend’s triangle.

Answer 1

Using the side lengths, we can determine that the longest side is 25.3 centimeters, so:

a² + b² > c²

where a, b, and c are the side lengths.

Substituting the values, we get:

15.6² + 12.6² > 25.3²

243.36 + 158.76 > 640.09

402.12 > 640.09

Since this is not true, we can classify the triangle as a scalene triangle since none of its sides are congruent.