Vedic Math's trick to find nearest value of area of circle
How we can find the nearest value of area of circle?
NOTE: This trick is only used for MCQ, so that we can find out the nearest value of the actual value of the area of circle.
STEP 1 :
First we will take a BASE VALUE like '14 cm'
Then find the actual value of area of circle using formula,
r = 14
π = 3.14
AREA OF CIRCLE = π r2
=> 3.14 X 142
=> 3.14 X 196
=> 615.44 cm2
STEP 2 :
Now we will put circle in to square and divide the square in to 9 small square part,
So, we will get Total square part = 9
Part covered by a circle is (9-2) = 7
Now we can say Area of circle = 7/9 part of the are aof square.
STEP 3 :
Now we will apply the trick to find the nearest value of area of circle.