A trapezoid can be drawn with one right angle.
quadralaterals have 4 equal sides and angles
a right angle is a right angle
an angle with a acute and right angle
No it is impossible for a right triangle to have an obtuse angle therefore it will have one right angle and two acute angles.
A right angle triangle.
A right angle triangle.
right-angle triangle has at least one right angle .
One half of a right angle is a 45 degree angle.
A right-angle is one of 90 degrees.
A right angle only has one angle.
A rectangle is a quadrilateral with 4 sides and 4 right angles. A square is a special form of rectangle, and it meets that criterion. But it is also equilateral, meaning its sides are all the same length (are all equal). It is a rectangle or a square. A square is a special type of rectangle with all sides having equal length. Here is a a nice chart showing the quadralaterals. http://content.answers.com/main/content/wp/en/f/f1/Quadrilateral_hierarchy.pngA quadrilateral where each angle is a right angle is known as an oblong.
If one angle is a right angle, it is a right triangle. If one angle is an obtuse angle, it is an obtuse triangle. If there are no right nor obtuse angle then it is an acute triangle.