Question

https://media.glynlyon.com/g_geo_2013/3/page63b.gif

Classify the triangle.

obtuse
equiangular
right
acute

Answer 1

Does it have an obtuse angle?

Answer 2

does it have an acute angle? does it have a right (90 degree) angle?

Answer 3

Let's just learn to figure these out.

Answer 4

In that triangle, the angles are all different which means the sides are all different. Since all the angles are less than 90 it does not have an obtuse angles and so it is not an obtuse triangle.

Answer 5

The angles are not equal so it cannot be equal angular

Answer 6

It doesn't have a right angle so it cannot be a right triangle.

Answer 7

All of the angles are less than 90 which means that all the angles are acute. Therefore it is an acute triangle.