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What are the two shapes of meniscus called?
The surface is concave if the liquid is attracted to the container walls and convex if it is not
What are plain shapes with length and width but no thickness?
All 2-dimensional shapes. They may be closed or open, concave or convex, made of straight lines or curved ones, the lines may or may not cross each other.
What do a trapezoid and a triangle make?
It depends entirely on their relative shapes and sizes. They could make a triangle, a parallelogram, a square, or a pentagon or even a concave heptagon.
What shapes can you make out of a triangle and a trapezium?
Assuming they don't overlap, and depending on their exact dimensions, these are some of the possible shapes: A triangle (big) A square A rectangle A parallelogram A rhombus A trapezium A pentagon A hexagon A heptagon and if a vertex of the triangle rests on the side of the trapezium, an octagon. a concave pentagon, a trapezium, a concave seven or eight sided figure (neither of the last two is a polygon but two polygons touching one another)
Is an arrow concave or convex?
Concave, because you can connect the corners from the outside.
