the.com/parallelogram
a rectangle that got tired of standing up straight
means A four-sided shape whose opposite sides run parallel and stay equal, even when it's leaning over.
from From the Greek 'parallelogrammon,' built from 'parallelos' (alongside one another) and 'gramme' (a line or something drawn). The 'parallel' half itself comes from 'para-' (beside) plus 'allelon' (one another) — literally 'beside each other' — while 'gramme' is a cousin of words like 'diagram' and 'grammar,' all tracing back to the Greek 'graphein,' to write or scratch a mark. So the whole word means roughly 'a figure drawn with lines running side by side.' It reached English through Latin and the geometers' love of borrowing Greek wholesale.
- area trick
- base times height, slant doesn't count
- sneaky family
- squares and rectangles are secretly parallelograms
- diagonals
- they bisect each other, always splitting fair
- opposite sides
- parallel and equal, by definition
- shear power
- slide a rectangle sideways, area survives