Yes, two right angles can be adjacent to one another. In the letter "T", it's formed by two adjacent right angles.
If the transversal is at right angles, then all the angles will be right angles. If not, there will be only two different measures between the eight angles formed. These will alternate.
Only three types of angles can be formed by two intesecting lines. Obtuse, acute, and right.
When two lines intercept equal opposite vertical angles are formed and if the lines are perpendicular then right angles are formed
180 Degree.
Right angles - or 90 degree angles.
A lowercase "h" has two right angles. These angles are formed at the junctions where the vertical line meets the two horizontal lines that create the top of the "h."
bicylinder
A square...!?!
4
yes, it makes four right angles.
Right angles aren't formed by other angles - it is already an angle itself. However, if you bisect a right angle, it becomes two acute angles.