Vertical angles are always, by definition, congruent. Note: If the two vertical angles are right angles then they are both congruent and supplementary.
No
always
Two angles that are congruent have the same angle measurement.
Oh, dude, a parallelogram has two acute angles. Yeah, you heard me right, just two. The other two angles are obtuse, so like, don't get too excited about those acute ones. It's all about that balanced geometry, man.
acute
yes
An obtuse triangle must have two acute angles and these can be congruent.
it is a rhombus
vertical angles are always congruent...they are two nonadjacent angles formed by intersecting lines. Vertical angles are congruent..or equal in measure
yes there similar
A parallelogram
It is a rhombus
Not true because supplementary angles add up to 180 degrees and two acute angles would be less than 180 degrees.
Yes, you have two congruent angles in each triangle, one right and one acute so the third angles must be equal also.
Because it has five angles it is a irregular pentagon.
Vertical angles are always, by definition, congruent. Note: If the two vertical angles are right angles then they are both congruent and supplementary.