Question

if the circumference of a circle is increased bu 50%,then its area will be increased by_________%

Answer 1

use the formula

x + y + (xy/100)

in which x=50, y= 50 because 50% increased circumference

so 50+50+(2500/100)= 100+25=125%

so, increased area = 125%

Answer 2

If the circumference of a circle us increased by 50% , then it's area will also be increased..... !!