why circle's area is pi r squre

Question

1 Answer

luckybhumkar · Answer 1 · 2019-01-24T20:12:15+0000

GRAPHICAL EXPLANATION
http://pythagoreanmath.com/complete-explanation-for-area-of-a-circle-formula/
VIDEO EXPLANATION
https://www.youtube.com/watch?v=YokKp3pwVFc
TEXTUAL EXPLANATION
- We divide our circle into many equal triangular wedges and then recombine them in a row.
- As we take more and more triangles, the resulting shape becomes approximately rectangular, with width πr, and height r. So its area is πr2.