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.
Types of triangle ; EQUILATERAL all three sides the same length and all three angles are 60 degrees. ISOSCELES Two sides the same length and two angles have the same degrees value. RIGHT-ANGLED All three sides can be of different lengths. However, it MUST have one Right-Angle (90 degrees) SCALENE All three sides of different lengths and all three angles of different angular values. NB In ALL four cases the sum of the interior angles MUST ADD TO 180 DEGREES.