4
Square, Rectangle, Rhombus & Parallelogram
Yes. The corners must be right angles for it to be inscribed on the circle.
That would depend on the dimension of the green triage. If the triangle was formed by joining two opposite corners of the parallelogram then it would be half the area of the parallelogram. Area of parallelogram = 15*2 = 30 square cm. 1/2 the area = 15 square cm.
It depends what type of parallelogram it is.
4 corners(angles).
4
10
It has 4 corners and 4 sides because it is a quadrilateral polygon
Four. Examples are parallelogram, rectangle, square etc
A parallelogram has 0 or 2 acute angles. If the parallelogram happens to have four right-angled corners, it is still a parallelogram (and a rectangle), but no acute angles.
90 degree corners.
A rectangle.
Not always. Like a rhombus.
no because it is a Parallelogram^That is quite an incorrect answer. Rectangles are parallelograms, but a parallelogram may not be a rectangle.All rectangles have 4 corners.Besides the point, to the original answerer, all parallelograms also have 4 corners...
A parallelogram has 2 pairs of parallel sides, and provided that it isn't a square, it has no square corners. If necessary, you could call it an "oblique parallelogram" to indicate that it isn't square.
A parallelogram has 2 pairs of parallel lines and in the form of a rectangle it has 2 pairs of parallel lines and 4 perpendicular lines that meet at each of its corners at right angles.