Types of Aangles (Right, Acute, Obtuse, Flat): Using angles in a triangle

ΔABC is a scalene triangle with acute angles.


Which angle is larger,
$∢C$ or $∢A$?

There is no way to know.

ABC is an isosceles triangle

($∢A$ is the predominant angle).

Which angle is larger,$∢B$ or$∢C$?

$∢C=∢B$

Triangle ABC is an obtuse triangle.

Which angle is larger, $∢B$ or $∢A$?

∢B>∢A

ABC is an equilateral triangle.

Which angle is larger, $∢B$ or$∢A$?

$∢A=∢B$

The triangle ABC is a right triangle.

Which angle is larger, $∢B$ or $∢A$?

∢A>∢B