Nope one angle can be 45 degrees while the other one can be 55 degrees
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.
Not so. The two acute angles of a right triangle must add up to 90 degrees.So if the triangles have one congruent acute angle in common, they must alsohave the other acute angle in common, and then they're similar.
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.
Vertical angles are always, by definition, congruent. Note: If the two vertical angles are right angles then they are both congruent and supplementary.
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.