Video narration
Ogi aj 80 meter lomba ar 60 meter chowra ekti mather ek konay dariye ache. Take jete hobe biporit konay. Char dik ghure gele poth onek lomba; mather bhetor diye tirjok hatlei to chhoto rasta. Kintu ei korner doirgho andaje noy, hisabei ber kora jay. Prothome mather kornoti tene bhabo - mathoti duti tribhuje bhag hoy. Doirgho 80 ar prostho 60 - ei dui bahu somokone mileche. Tai tribhujer 90 degree koner biporit bahutii otibhuj, orthat mather korn. Ekhanei mor: eta shudhu dekhte chhoto shortcut noy. Somokon thaklei Pythagoras-er upopaddho bole, dui lomb bahur borg er jogfol soman otibhujer borg er. Sutrati holo a^2 + b^2 = c^2. Ebar bosai: 80^2 + 60^2 = 6,400 + 3,600 = 10,000. 10,000-er borgomul 100, orthat korn 100 meter. Charpas dhore hatar bodole, ei 100 meterer soja poth onek kom - ebong hisabti onuman noy. Tai 80x60 meterer mather korn 100 meter - Pythagoras-er upopaddhoi soja pother hisab dey.