Question

If the area of a circle increases by 36.96 square cm when it's radius is increased by 1.4 cm , then find the original radius of the circle

Answer 1

Answer:

Step-by-step explanation:

let the

             initial area be X

             initial radius be R

now,

final area is X+36.96

final radius is R+1.4

WE KNOW THAT,

area of a circle is

pie r^.......the rest yoj;u find out ma..........