Question

question in △abc, bc = 9, ca = 17, and ab = 13. which list has the angles of △abc in order from largest to smallest? answer m∠b, m∠a, m∠c m∠c, m∠a, m∠b m∠c, m∠b, m∠a m∠a, m∠b, m∠c m∠b, m∠c, m∠a m∠a, m∠c, m∠b

Explanation:

Step1: Recall angle - side relationship

In a triangle, the largest angle is opposite the longest side and the smallest angle is opposite the shortest side.

Step2: Identify side lengths

Given $BC = 9$, $CA=17$, and $AB = 13$. The order of side - lengths from longest to shortest is $CA>AB>BC$.

Step3: Determine angle order

The angle opposite $CA$ is $\angle B$, the angle opposite $AB$ is $\angle C$, and the angle opposite $BC$ is $\angle A$. So the order of angles from largest to smallest is $\angle B,\angle C,\angle A$.

Answer:

m$\angle B$, m$\angle C$, m$\angle A$