Yes
Yes, a quadrilateral is a four sided figure and a parallelogram has on top of this property the requirment that the opposite sides are parallel and equal in lengths.
-- All regular (equilateral) triangles are similar. -- All squares are similar. -- All pentagons are similar. -- All hexagons are similar. . . . etc. Any regular polygon is similar to all other regular polygons with the same number of sides.
All congruent shapes are similar, but not all similar shapes are congruent.
No not all obtuse triangular are similar. :)
they are not similar at all!
No not all rectangles are similar because the proportions are different.
no. not all cylinders are similar, some may even be slanted
No, not all rectangles are similar because the proportions are different.
all tundras ecosystem have similar features
NO! Only REGULAR Pentagons. All equilateral triangles are similar!!!
Cuboids are not always similar.