a line or supplementary angles.
you need the apex angle, call it n. Each base angle is one-half of (180 - n)
Rhombus
triangle isosceles triangle
If three of the angles of a quadrilateral are right angles, then the fourth angle must also be a right angle. The sum of the interior angles of any two-dimensional (planar) geometric figure must add up to 360 degrees. As this is the case, three times 90 equals 270, and 270 subtracted from 360 leaves 90. The quadrilateral described here is a rectangle. If all the sides are the same length, it is a special case of a rectangle that we call a square.
a 'SCALENE' triangle. ; No equal sides, and no equal angles. An ISOSCELES triangle has two equal sides and two equal angles. An EQUILATERAL tringle has three equal sides and three equal angles all at 60 degrees. A RIGHT ANGLED triangle has one right angle (90 degrees) in it.
Such a rhombus is not possible as it would not have all its sides equal. Or you can keep all angles right angles and call it a square.
Opposite angles are equal, so:One of the angles can be anything between 0 and 180 degrees (exclusive). Call this "x".The opposite angle must be the same - also "x".The other two angles must be 180 - x.
you can call on ark angle Micheal for corage you can call on ark angle Micheal for corage you can call on ark angle Micheal for corage
a complementary angle
the angle is call and obtuse
Remote interior angles.
Remote interior angles.
Right Angle.
A polygon with four equal angles and sides is a square.
In an isosceles triangle that has exactly two equal sides, the equal sides are called legs and the third side is called the base. The angle included by the legs is called the vertex angle and the angles that have the base as one of their sides are called the base angles.
a line or supplementary angles.