All triangles have 3 angles - whether they are acute angled, right angled or obtuse angled.
All of them
There are no acute angles in a rectangle which has 4 equal interior right angles
It can have 0 or 2 right angles, 1 or 2 acute or obtuse angles.
An acute angle is less than 90 degrees. Dividing a square into four equal triangles would not have any acute angles since they would all be 90 degrees. A 90 degree angle is called a right angle.
Yes. Many triangles can for example, an equalateral triangle
All triangles have three angles.
A rhombus will either have four right angles, or two acute angles and two obtuse angles.
For the "catch all" and most broad type of triangles, there are 3: Obtuse - 1 angle > 90° Acute - all angles < 90° Right - 1 angle exactly 90° There are more specific categories, such as isosceles triangles, which can be obtuse, right or acute triangles that contain exactly 2 angles of equal degree, and exactly 2 sides of equal lengths.
None it only has acute angles
I'm pretty sure all triangles measure 180 degrees because they have three angles that are either acute, right, or obtuse angles and the triangle has to be either an equilateral, iscoceles, or scalene triangle.