TWO.
An obtuse triangle can have no right angles, and has two equal angles.
The square has four right angles. The pentagon has two right angles.
A rhombus will either have four right angles, or two acute angles and two obtuse angles.
At most two.
TWO.
An obtuse triangle can have no right angles, and has two equal angles.
A trapezoid can have either none or two right angles.
The square has four right angles. The pentagon has two right angles.
There are: 2.5 times 90 = 225 degrees
3
A rhombus will either have four right angles, or two acute angles and two obtuse angles.
At most two.
None or two.
Two.
Two.
two two