I think it is 500mm x 707mm or 19 5/8 in x 12 7/8 in if you want inches.
That is the Size of B2 size Paper sheet.
Size of B2 size Photograph is 5 cm x 7 cm.
force and motion
2cm by 2cm
appeture
karyotype
length
The B2 paper size is 19.7 x 27.8 inches.
force and motion
60 yards
a point on a line
The B2 is nowhere near the size or weight of an airbus. It is smaller in every respect.
A point in math has no linear dimension (hence size).
To find a missing dimension of an object find the size of its covering properties.
a plane
point
Probably the same way we perceive a photograph of a person. It'd seem flat.
2cm by 2cm
A point.