Question

List the angles in order from the largest to the smallest for ΔABC. AB=16, BC=20, CA=17.

Answer 1

Remember that in a triangle ABC, the angle A is opposite to the side BC, as well as the angle B is opposite to the side AC and the angle C is opposite to the side AC, as shown:

On the other hand, remember that larger sides are opposite to larger angles.

Write the sides AB, BC and CA in order from largest to smallest. Given that:

`\begin{gathered} AB=16 \\ \\ BC=20 \\ \\ CA=17 \end{gathered}`

Then, the list of sides from largest to smallest is: BC, CA, AB.

Their respective opposite angles are A, B, C.

Therefore, the correct choice is option B)

`\angle A,\angle B,\angle C`