

Сторона квадрата — один метр.
The side of the square is one meter.
Мне нужен метр ткани.
I need a meter of fabric.
Один метр — это сто сантиметров.
One meter is one hundred centimeters.
"метр" is in the lesson "Geometric figures" (Level 45), along with 11 other useful words. LinDuo has 180 topic lessons like this one, 2,380 words in total. Every word has an illustration, a transcription and pronunciation in a female and a male voice. Just 10–15 minutes a day is enough to learn them all. Free, and works offline.