Vertical angles are always, by definition, congruent. Note: If the two vertical angles are right angles then they are both congruent and supplementary.
Not always. If two angles are congruent then they simply have equal measure. They must only be right angles if they are supplementary, that is, they must both add up to 180 degrees.
A right trapezoid can have no congruent sides and two right angles.
if numbers grow too large to represent at the fixed level of precision
vertical angles are always congruent...they are two nonadjacent angles formed by intersecting lines. Vertical angles are congruent..or equal in measure
A pair of congruent angles are those which measure the same size. Therefore, two congruent angles can be of any size, as long as they are of an identical size.Angles of 90 degrees are commonly referred to as "right angles".
If two angles are equal in measurement then they are congruent as for example the interior angles of a square are congruent because they are all right angles.
No. If two angles are congruent they have the same measure. But that measure can be anything.
Yes. The two base angles (the angles opposite the equal sides) are always congruent.
yes
No. You get two congruent angles.
Not always