no
If it is a 'regular' hexagon, then all angles are congruent, and all are obtuse.
acute
yes
It is a rhombus
A scalene triangle
Parallelograms normally have 2 congruent obtuse angles and 2 congruent acute angles that altogether add up to 360 degrees
An obtuse triangle must have two acute angles and these can be congruent.
No.
alot
No, not all four angles in a rhombus are congruent. A rhombus has opposite angles that are congruent, and the adjacent angles are supplementary, meaning they add up to 180 degrees. Therefore, while opposite angles are equal, the four angles are not necessarily all the same. In fact, a rhombus can have two acute angles and two obtuse angles.
No, there are different kinds of angles, such as acute, reflex, straight and obtuse. A right angle is 90°.
By Definition, a triangle with two Congruent Sides is an Isosceles Triangle. For ALL angles to be Acute, that is, LESS than 90o , the two opposite angles must be greater than 45o. Remember that the SUM of the angles in a Triangle must equal 180o.