Saved Bookmarks
| 1. |
! Find the area of a circle made of 1m wire ? |
|
Answer» Answer: Here's Your Answer Step-by-step explanation: ◆It's REALLY simple if you play around with AREA of a circle's EQUATION. The area of a circle is GIVEN by the FORMULA A = π r², where A is the area and r is the radius. Since we know the circumference of a circle is give by C =2 π r. If we play around with 'r' in the second equation, then we get r= C/2π. Now if we substitute new value found for 'r' in the first equation, the we get A= π [C/(2π)]² Simplyfying the equation, we get A= C²/ 4π Now if we put the value of C in the above equation, you'll get the value of area of the circle. Just keep in mind that you should substitute π with 3.14 Hope it's helps you.. |
|