Question

Classify the triangles either by their sides or their angles. Explain how you know the classification for the triangles.

Answer 1

Given data:

The given figure of the triangle.

As all angles are less than 90 degrees, so it is acutte angle triangle.

Thus, the given triangle is an acute angle triangle.

Given data:

The given triangle is shown.

The expression to decide the triangle is,

`\begin{gathered} 15^2>(7)^2+(12)^2 \\ 225>193 \end{gathered}`

Thus, the second triangle is obtuse angle triangle.